diff --git a/dlls/jscript/dispex.c b/dlls/jscript/dispex.c
index 9e87c38004f..2da2270fb0f 100644
--- a/dlls/jscript/dispex.c
+++ b/dlls/jscript/dispex.c
@@ -896,6 +896,24 @@ HRESULT gc_run(script_ctx_t *ctx)
                     break;
             }
 
+            /* For weak refs, traverse paths accessible from it via the WeakMaps, if the WeakMaps are alive at this point.
+               We need both the key and the WeakMap for the entry to actually be accessible (and thus traversed). */
+            if(obj2->has_weak_refs) {
+                struct list *list = &RB_ENTRY_VALUE(rb_get(&ctx->weak_refs, obj2), struct weak_refs_entry, entry)->list;
+                struct weakmap_entry *entry;
+
+                LIST_FOR_EACH_ENTRY(entry, list, struct weakmap_entry, weak_refs_entry) {
+                    if(!entry->weakmap->gc_marked && is_object_instance(entry->value) && (link = to_jsdisp(get_object(entry->value)))) {
+                        hres = gc_stack_push(&gc_ctx, link);
+                        if(FAILED(hres))
+                            break;
+                    }
+                }
+
+                if(FAILED(hres))
+                    break;
+            }
+
             do obj2 = gc_stack_pop(&gc_ctx); while(obj2 && !obj2->gc_marked);
         } while(obj2);
 
@@ -2222,6 +2240,13 @@ void jsdisp_free(jsdisp_t *obj)
 
     TRACE("(%p)\n", obj);
 
+    if(obj->has_weak_refs) {
+        struct list *list = &RB_ENTRY_VALUE(rb_get(&obj->ctx->weak_refs, obj), struct weak_refs_entry, entry)->list;
+        do {
+            remove_weakmap_entry(LIST_ENTRY(list->next, struct weakmap_entry, weak_refs_entry));
+        } while(obj->has_weak_refs);
+    }
+
     for(prop = obj->props; prop < obj->props+obj->prop_cnt; prop++) {
         switch(prop->type) {
         case PROP_JSVAL:
diff --git a/dlls/jscript/error.c b/dlls/jscript/error.c
index c3768668178..cf0ece42f15 100644
--- a/dlls/jscript/error.c
+++ b/dlls/jscript/error.c
@@ -483,6 +483,7 @@ jsdisp_t *create_builtin_error(script_ctx_t *ctx)
         case JS_E_OBJECT_NONEXTENSIBLE:
         case JS_E_NONCONFIGURABLE_REDEFINED:
         case JS_E_NONWRITABLE_MODIFIED:
+        case JS_E_KEY_NOT_OBJECT:
         case JS_E_PROP_DESC_MISMATCH:
         case JS_E_INVALID_WRITABLE_PROP_DESC:
             constr = ctx->type_error_constr;
diff --git a/dlls/jscript/jscript.c b/dlls/jscript/jscript.c
index 401f6ca85b0..b1940b770d3 100644
--- a/dlls/jscript/jscript.c
+++ b/dlls/jscript/jscript.c
@@ -715,6 +715,13 @@ static ULONG WINAPI JScript_Release(IActiveScript *iface)
     return ref;
 }
 
+static int weak_refs_compare(const void *key, const struct rb_entry *entry)
+{
+    const struct weak_refs_entry *weak_refs_entry = RB_ENTRY_VALUE(entry, const struct weak_refs_entry, entry);
+    ULONG_PTR a = (ULONG_PTR)key, b = (ULONG_PTR)LIST_ENTRY(weak_refs_entry->list.next, struct weakmap_entry, weak_refs_entry)->key;
+    return (a > b) - (a < b);
+}
+
 static HRESULT WINAPI JScript_SetScriptSite(IActiveScript *iface,
                                             IActiveScriptSite *pass)
 {
@@ -748,6 +755,7 @@ static HRESULT WINAPI JScript_SetScriptSite(IActiveScript *iface,
         ctx->acc = jsval_undefined();
         list_init(&ctx->named_items);
         list_init(&ctx->objects);
+        rb_init(&ctx->weak_refs, weak_refs_compare);
         heap_pool_init(&ctx->tmp_heap);
 
         hres = create_jscaller(ctx);
diff --git a/dlls/jscript/jscript.h b/dlls/jscript/jscript.h
index d907da3a36c..650c9278793 100644
--- a/dlls/jscript/jscript.h
+++ b/dlls/jscript/jscript.h
@@ -32,6 +32,7 @@
 #include "resource.h"
 
 #include "wine/list.h"
+#include "wine/rbtree.h"
 
 /*
  * This is Wine jscript extension for ES5 compatible mode. Native IE9+ implements
@@ -179,6 +180,7 @@ struct jsdisp_t {
 
     LONG ref;
 
+    BOOLEAN has_weak_refs;
     BOOLEAN extensible;
     BOOLEAN gc_marked;
 
@@ -362,6 +364,11 @@ typedef struct {
     unsigned length;
 } match_result_t;
 
+struct weak_refs_entry {
+    struct rb_entry entry;
+    struct list list;
+};
+
 struct _script_ctx_t {
     LONG ref;
 
@@ -371,6 +378,7 @@ struct _script_ctx_t {
     struct _call_frame_t *call_ctx;
     struct list named_items;
     struct list objects;
+    struct rb_tree weak_refs;
     IActiveScriptSite *site;
     IInternetHostSecurityManager *secmgr;
     DWORD safeopt;
@@ -426,6 +434,15 @@ struct _script_ctx_t {
 };
 C_ASSERT(RTL_SIZEOF_THROUGH_FIELD(script_ctx_t, weakmap_prototype) == RTL_SIZEOF_THROUGH_FIELD(script_ctx_t, global_objects));
 
+struct weakmap_entry {
+    struct rb_entry entry;
+    jsdisp_t *key;
+    jsval_t value;
+    jsdisp_t *weakmap;
+    struct list weak_refs_entry;
+};
+void remove_weakmap_entry(struct weakmap_entry*);
+
 void script_release(script_ctx_t*);
 
 static inline void script_addref(script_ctx_t *ctx)
@@ -550,6 +567,7 @@ static inline HRESULT disp_call_value(script_ctx_t *ctx, IDispatch *disp, jsval_
 #define JS_E_NONCONFIGURABLE_REDEFINED MAKE_JSERROR(IDS_NONCONFIGURABLE_REDEFINED)
 #define JS_E_NONWRITABLE_MODIFIED    MAKE_JSERROR(IDS_NONWRITABLE_MODIFIED)
 #define JS_E_WRONG_THIS              MAKE_JSERROR(IDS_WRONG_THIS)
+#define JS_E_KEY_NOT_OBJECT          MAKE_JSERROR(IDS_KEY_NOT_OBJECT)
 #define JS_E_PROP_DESC_MISMATCH      MAKE_JSERROR(IDS_PROP_DESC_MISMATCH)
 #define JS_E_INVALID_WRITABLE_PROP_DESC MAKE_JSERROR(IDS_INVALID_WRITABLE_PROP_DESC)
 
diff --git a/dlls/jscript/jscript.rc b/dlls/jscript/jscript.rc
index fbf965fb7e8..e5289a550a3 100644
--- a/dlls/jscript/jscript.rc
+++ b/dlls/jscript/jscript.rc
@@ -77,6 +77,7 @@ STRINGTABLE
     IDS_NONCONFIGURABLE_REDEFINED  "Cannot redefine non-configurable property '|'"
     IDS_NONWRITABLE_MODIFIED       "Cannot modify non-writable property '|'"
     IDS_WRONG_THIS                 "'this' is not a | object"
+    IDS_KEY_NOT_OBJECT             "'key' is not an object"
     IDS_PROP_DESC_MISMATCH         "Property cannot have both accessors and a value"
 
     IDS_COMPILATION_ERROR   "Microsoft JScript compilation error"
diff --git a/dlls/jscript/resource.h b/dlls/jscript/resource.h
index 0ac457d740d..ad771b67475 100644
--- a/dlls/jscript/resource.h
+++ b/dlls/jscript/resource.h
@@ -75,6 +75,7 @@
 #define IDS_NONCONFIGURABLE_REDEFINED       0x13D6
 #define IDS_NONWRITABLE_MODIFIED            0x13D7
 #define IDS_WRONG_THIS                      0x13FC
+#define IDS_KEY_NOT_OBJECT                  0x13FD
 /* FIXME: This is not compatible with native, but we would
  * conflict with IDS_UNSUPPORTED_ACTION otherwise */
 #define IDS_PROP_DESC_MISMATCH              0x1F00
diff --git a/dlls/jscript/set.c b/dlls/jscript/set.c
index 2afb763f4d7..f8c07474632 100644
--- a/dlls/jscript/set.c
+++ b/dlls/jscript/set.c
@@ -616,8 +616,56 @@ static HRESULT Set_constructor(script_ctx_t *ctx, jsval_t vthis, WORD flags, uns
 
 typedef struct {
     jsdisp_t dispex;
+    struct rb_tree map;
 } WeakMapInstance;
 
+static int weakmap_compare(const void *k, const struct rb_entry *e)
+{
+    ULONG_PTR a = (ULONG_PTR)k, b = (ULONG_PTR)RB_ENTRY_VALUE(e, const struct weakmap_entry, entry)->key;
+    return (a > b) - (a < b);
+}
+
+static HRESULT get_weakmap_this(script_ctx_t *ctx, jsval_t vthis, WeakMapInstance **ret)
+{
+    jsdisp_t *jsdisp;
+
+    if(!is_object_instance(vthis))
+        return JS_E_OBJECT_EXPECTED;
+    if(!(jsdisp = to_jsdisp(get_object(vthis))) || !is_class(jsdisp, JSCLASS_WEAKMAP)) {
+        WARN("not a WeakMap object passed as 'this'\n");
+        throw_error(ctx, JS_E_WRONG_THIS, L"WeakMap");
+        return DISP_E_EXCEPTION;
+    }
+
+    *ret = CONTAINING_RECORD(jsdisp, WeakMapInstance, dispex);
+    return S_OK;
+}
+
+static struct weakmap_entry *get_weakmap_entry(WeakMapInstance *weakmap, jsdisp_t *key)
+{
+    struct rb_entry *entry;
+    if(!(entry = rb_get(&weakmap->map, key))) return NULL;
+    return CONTAINING_RECORD(entry, struct weakmap_entry, entry);
+}
+
+void remove_weakmap_entry(struct weakmap_entry *entry)
+{
+    WeakMapInstance *weakmap = (WeakMapInstance*)entry->weakmap;
+    struct list *next = entry->weak_refs_entry.next;
+
+    if(next->next != &entry->weak_refs_entry)
+        list_remove(&entry->weak_refs_entry);
+    else {
+        struct weak_refs_entry *weak_refs_entry = LIST_ENTRY(next, struct weak_refs_entry, list);
+        entry->key->has_weak_refs = FALSE;
+        rb_remove(&entry->key->ctx->weak_refs, &weak_refs_entry->entry);
+        free(weak_refs_entry);
+    }
+    rb_remove(&weakmap->map, &entry->entry);
+    jsval_release(entry->value);
+    free(entry);
+}
+
 static HRESULT WeakMap_clear(script_ctx_t *ctx, jsval_t vthis, WORD flags, unsigned argc, jsval_t *argv,
         jsval_t *r)
 {
@@ -642,8 +690,67 @@ static HRESULT WeakMap_get(script_ctx_t *ctx, jsval_t vthis, WORD flags, unsigne
 static HRESULT WeakMap_set(script_ctx_t *ctx, jsval_t vthis, WORD flags, unsigned argc, jsval_t *argv,
         jsval_t *r)
 {
-    FIXME("\n");
-    return E_NOTIMPL;
+    jsdisp_t *key = (argc >= 1 && is_object_instance(argv[0])) ? to_jsdisp(get_object(argv[0])) : NULL;
+    jsval_t value = argc >= 2 ? argv[1] : jsval_undefined();
+    struct weakmap_entry *entry;
+    WeakMapInstance *weakmap;
+    HRESULT hres;
+
+    hres = get_weakmap_this(ctx, vthis, &weakmap);
+    if(FAILED(hres))
+        return hres;
+
+    TRACE("%p (%p %s)\n", weakmap, key, debugstr_jsval(value));
+
+    if(!key)
+        return JS_E_KEY_NOT_OBJECT;
+
+    if(key->ctx != ctx) {
+        FIXME("different ctx not supported\n");
+        return JS_E_KEY_NOT_OBJECT;
+    }
+
+    if((entry = get_weakmap_entry(weakmap, key))) {
+        jsval_t val;
+        hres = jsval_copy(value, &val);
+        if(FAILED(hres))
+            return hres;
+
+        jsval_release(entry->value);
+        entry->value = val;
+    }else {
+        struct weak_refs_entry *weak_refs_entry;
+
+        if(!(entry = malloc(sizeof(*entry))))
+            return E_OUTOFMEMORY;
+
+        hres = jsval_copy(value, &entry->value);
+        if(FAILED(hres)) {
+            free(entry);
+            return hres;
+        }
+
+        if(key->has_weak_refs)
+            weak_refs_entry = RB_ENTRY_VALUE(rb_get(&ctx->weak_refs, key), struct weak_refs_entry, entry);
+        else {
+            if(!(weak_refs_entry = malloc(sizeof(*weak_refs_entry)))) {
+                jsval_release(entry->value);
+                free(entry);
+                return E_OUTOFMEMORY;
+            }
+            rb_put(&ctx->weak_refs, key, &weak_refs_entry->entry);
+            list_init(&weak_refs_entry->list);
+            key->has_weak_refs = TRUE;
+        }
+        list_add_tail(&weak_refs_entry->list, &entry->weak_refs_entry);
+
+        entry->key = key;
+        entry->weakmap = &weakmap->dispex;
+        rb_put(&weakmap->map, key, &entry->entry);
+    }
+
+    if(r) *r = jsval_undefined();
+    return S_OK;
 }
 
 static HRESULT WeakMap_has(script_ctx_t *ctx, jsval_t vthis, WORD flags, unsigned argc, jsval_t *argv,
@@ -664,11 +771,35 @@ static void WeakMap_destructor(jsdisp_t *dispex)
 {
     WeakMapInstance *weakmap = (WeakMapInstance*)dispex;
 
+    while(weakmap->map.root)
+        remove_weakmap_entry(RB_ENTRY_VALUE(weakmap->map.root, struct weakmap_entry, entry));
+
     free(weakmap);
 }
 
 static HRESULT WeakMap_gc_traverse(struct gc_ctx *gc_ctx, enum gc_traverse_op op, jsdisp_t *dispex)
 {
+    WeakMapInstance *weakmap = (WeakMapInstance*)dispex;
+    struct weakmap_entry *entry;
+    HRESULT hres;
+
+    if(op == GC_TRAVERSE_UNLINK) {
+        while(weakmap->map.root)
+            remove_weakmap_entry(RB_ENTRY_VALUE(weakmap->map.root, struct weakmap_entry, entry));
+        return S_OK;
+    }
+
+    RB_FOR_EACH_ENTRY(entry, &weakmap->map, struct weakmap_entry, entry) {
+        /* Only traverse the values if the key turned out to be alive, which means it might not have traversed
+           the associated values with it from this WeakMap yet (because it wasn't considered alive back then).
+           We need both the key and the WeakMap for the entry to actually be accessible (and thus traversed). */
+        if(op == GC_TRAVERSE && entry->key->gc_marked)
+            continue;
+
+        hres = gc_process_linked_val(gc_ctx, op, dispex, &entry->value);
+        if(FAILED(hres))
+            return hres;
+    }
     return S_OK;
 }
 
@@ -721,6 +852,7 @@ static HRESULT WeakMap_constructor(script_ctx_t *ctx, jsval_t vthis, WORD flags,
         if(FAILED(hres))
             return hres;
 
+        rb_init(&weakmap->map, weakmap_compare);
         *r = jsval_obj(&weakmap->dispex);
         return S_OK;
 
diff --git a/po/ar.po b/po/ar.po
index c26392e3fa3..5a2506206c4 100644
--- a/po/ar.po
+++ b/po/ar.po
@@ -3999,15 +3999,15 @@ msgstr "البناء الشرطي معطل"
 msgid "Expected '@'"
 msgstr "متوقع ';'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4136,6 +4136,12 @@ msgid "'this' is not a | object"
 msgstr "'[object]' ليس عنصر تاريخ"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'[object]' is not a date object"
+msgid "'key' is not an object"
+msgstr "'[object]' ليس عنصر تاريخ"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/ast.po b/po/ast.po
index e4da14a771a..9bb995e8a19 100644
--- a/po/ast.po
+++ b/po/ast.po
@@ -3874,15 +3874,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr "Esperábase «@»"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr ""
 
@@ -4003,6 +4003,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/bg.po b/po/bg.po
index 3ab8cb3e7e2..fa971d43955 100644
--- a/po/bg.po
+++ b/po/bg.po
@@ -4000,15 +4000,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 msgid "Unknown runtime error"
 msgstr "Пре&гледай изходния код"
@@ -4130,6 +4130,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/ca.po b/po/ca.po
index a54d8a72575..1b4ff2110be 100644
--- a/po/ca.po
+++ b/po/ca.po
@@ -3977,15 +3977,15 @@ msgstr "La compilació condicional està desactivada"
 msgid "Expected '@'"
 msgstr "S'esperava '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Error de compilació de Microsoft JScript"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Error d'entorn d'execució de Microsoft JScript"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Error d'entorn d'execució desconegut"
 
@@ -4108,6 +4108,12 @@ msgid "'this' is not a | object"
 msgstr "'this' no és un objecte de |"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a | object"
+msgid "'key' is not an object"
+msgstr "'this' no és un objecte de |"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "La propietat no pot tenir ambdós mètodes d'accés i un valor"
 
diff --git a/po/cs.po b/po/cs.po
index 6f6557fada8..fedb9328609 100644
--- a/po/cs.po
+++ b/po/cs.po
@@ -3940,15 +3940,15 @@ msgstr "Podmíněná kompilace je vypnutá"
 msgid "Expected '@'"
 msgstr "Očekáváno „@“"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4077,6 +4077,12 @@ msgid "'this' is not a | object"
 msgstr "„%s“ není platný název portu"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'%s' is not a valid port name"
+msgid "'key' is not an object"
+msgstr "„%s“ není platný název portu"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/da.po b/po/da.po
index 95ea42e3eac..9f0a2700174 100644
--- a/po/da.po
+++ b/po/da.po
@@ -4032,15 +4032,15 @@ msgstr "Betinget kompilering er slået fra"
 msgid "Expected '@'"
 msgstr "Forventet ';'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4173,6 +4173,12 @@ msgid "'this' is not a | object"
 msgstr "«[objekt]» er ikke et dato objekt"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'[object]' is not a date object"
+msgid "'key' is not an object"
+msgstr "«[objekt]» er ikke et dato objekt"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/de.po b/po/de.po
index 302d4aaa3b3..dab4100d256 100644
--- a/po/de.po
+++ b/po/de.po
@@ -3964,15 +3964,15 @@ msgstr "Bedingte Kompilierung ist ausgeschaltet"
 msgid "Expected '@'"
 msgstr "'@' erwartet"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript Übersetzungsfehler"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript Laufzeitfehler"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Unbekannter Laufzeitfehler"
 
@@ -4096,6 +4096,12 @@ msgid "'this' is not a | object"
 msgstr "'this' ist kein |-Objekt"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a | object"
+msgid "'key' is not an object"
+msgstr "'this' ist kein |-Objekt"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "Eigenschaft kann nicht sowohl Accessoren als auch einen Wert haben"
 
diff --git a/po/el.po b/po/el.po
index 017f5e6a555..7189500a85e 100644
--- a/po/el.po
+++ b/po/el.po
@@ -3902,15 +3902,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 msgid "Unknown runtime error"
 msgstr "&Περιεχόμενα"
@@ -4030,6 +4030,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/en.po b/po/en.po
index 805f055c494..3e3e98c88f9 100644
--- a/po/en.po
+++ b/po/en.po
@@ -3952,15 +3952,15 @@ msgstr "Conditional compilation is turned off"
 msgid "Expected '@'"
 msgstr "Expected '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript compilation error"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript runtime error"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Unknown runtime error"
 
@@ -4081,6 +4081,10 @@ msgid "'this' is not a | object"
 msgstr "'this' is not a | object"
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr "'key' is not an object"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "Property cannot have both accessors and a value"
 
diff --git a/po/en_US.po b/po/en_US.po
index 7ec4f7cfc91..e38c661b741 100644
--- a/po/en_US.po
+++ b/po/en_US.po
@@ -3952,15 +3952,15 @@ msgstr "Conditional compilation is turned off"
 msgid "Expected '@'"
 msgstr "Expected '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript compilation error"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript runtime error"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Unknown runtime error"
 
@@ -4081,6 +4081,10 @@ msgid "'this' is not a | object"
 msgstr "'this' is not a | object"
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr "'key' is not an object"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "Property cannot have both accessors and a value"
 
diff --git a/po/eo.po b/po/eo.po
index 8f0e9141803..db947e89b5f 100644
--- a/po/eo.po
+++ b/po/eo.po
@@ -3908,15 +3908,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown printer driver."
 msgid "Unknown runtime error"
@@ -4039,6 +4039,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/es.po b/po/es.po
index ddaf1325dcc..890f56f785f 100644
--- a/po/es.po
+++ b/po/es.po
@@ -3978,15 +3978,15 @@ msgstr "La compilación condicional está desactivada"
 msgid "Expected '@'"
 msgstr "Esperado '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Error de compilación Microsoft JScript"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Error de ejecución  Microsoft JScript"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Error desconocido en tiempo de ejecución"
 
@@ -4113,6 +4113,12 @@ msgid "'this' is not a | object"
 msgstr "'[this]' no es un objeto Map"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a Map object"
+msgid "'key' is not an object"
+msgstr "'[this]' no es un objeto Map"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "La propiedad no puede tener tanto descriptores de acceso como un valor"
 
diff --git a/po/fa.po b/po/fa.po
index 83ada6ff5df..c56938aa9b9 100644
--- a/po/fa.po
+++ b/po/fa.po
@@ -3928,15 +3928,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr ""
 
@@ -4057,6 +4057,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/fi.po b/po/fi.po
index dfcf0907b77..f9a77aec3bc 100644
--- a/po/fi.po
+++ b/po/fi.po
@@ -3950,15 +3950,15 @@ msgstr "Ehdollinen kääntäminen on pois käytöstä"
 msgid "Expected '@'"
 msgstr "Odotettiin merkkiä '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript -käännösvirhe"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript -suoritusvirhe"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Tuntematon ajonaikainen virhe"
 
@@ -4080,6 +4080,12 @@ msgid "'this' is not a | object"
 msgstr "'this' ei ole |-objekti"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a | object"
+msgid "'key' is not an object"
+msgstr "'this' ei ole |-objekti"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "Ominaisuudella ei voi olla sekä hakufunktiota että arvoa"
 
diff --git a/po/fr.po b/po/fr.po
index 603d186546e..7fd3cd4a835 100644
--- a/po/fr.po
+++ b/po/fr.po
@@ -3974,15 +3974,15 @@ msgstr "La compilation conditionnelle est désactivée"
 msgid "Expected '@'"
 msgstr "« @ » attendu"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Erreur de compilation Microsoft JScript"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Erreur d'exécution de Microsoft JScript"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Erreur d'exécution inconnue"
 
@@ -4105,6 +4105,12 @@ msgid "'this' is not a | object"
 msgstr "« this » n'est pas un objet de type Map"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a Map object"
+msgid "'key' is not an object"
+msgstr "« this » n'est pas un objet de type Map"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "La propriété ne peut à la fois avoir une valeur et des accesseurs"
 
diff --git a/po/he.po b/po/he.po
index 12729d32556..67d3f809d72 100644
--- a/po/he.po
+++ b/po/he.po
@@ -3991,15 +3991,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4127,6 +4127,12 @@ msgid "'this' is not a | object"
 msgstr "'%s' אינו שם תקני לפתחה"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'%s' is not a valid port name"
+msgid "'key' is not an object"
+msgstr "'%s' אינו שם תקני לפתחה"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/hi.po b/po/hi.po
index 651605f213f..faa5e370f09 100644
--- a/po/hi.po
+++ b/po/hi.po
@@ -3858,15 +3858,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr ""
 
@@ -3986,6 +3986,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/hr.po b/po/hr.po
index c192e89b313..4212eca838d 100644
--- a/po/hr.po
+++ b/po/hr.po
@@ -4004,15 +4004,15 @@ msgstr "Kondicionalna kompilacija je isključena"
 msgid "Expected '@'"
 msgstr "Očekivano ';'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4141,6 +4141,12 @@ msgid "'this' is not a | object"
 msgstr "'[object]' nije vremenski objekt"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'[object]' is not a date object"
+msgid "'key' is not an object"
+msgstr "'[object]' nije vremenski objekt"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/hu.po b/po/hu.po
index eda263f5f35..b6d64ce372e 100644
--- a/po/hu.po
+++ b/po/hu.po
@@ -4050,15 +4050,15 @@ msgstr "Feltételes fordítás kikapcsolva"
 msgid "Expected '@'"
 msgstr "Hiányzó ';'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4191,6 +4191,12 @@ msgid "'this' is not a | object"
 msgstr "'Az [object]' nem egy date (dátum) objektum"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'[object]' is not a date object"
+msgid "'key' is not an object"
+msgstr "'Az [object]' nem egy date (dátum) objektum"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/it.po b/po/it.po
index d2629062147..88872238814 100644
--- a/po/it.po
+++ b/po/it.po
@@ -4058,15 +4058,15 @@ msgstr "Compilazione condizionale disattivata"
 msgid "Expected '@'"
 msgstr "Richiesto ';'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4199,6 +4199,12 @@ msgid "'this' is not a | object"
 msgstr "'[oggetto]' non è un oggetto data"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'[object]' is not a date object"
+msgid "'key' is not an object"
+msgstr "'[oggetto]' non è un oggetto data"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/ja.po b/po/ja.po
index 958cb1194b2..100919925c2 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -3948,15 +3948,15 @@ msgstr "条件コンパイルはオフにされています"
 msgid "Expected '@'"
 msgstr "'@'を期待していました"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript コンパイル エラー"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript 実行時エラー"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "未知の実行時エラー"
 
@@ -4079,6 +4079,12 @@ msgid "'this' is not a | object"
 msgstr "'this' は | オブジェクトではありません"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a | object"
+msgid "'key' is not an object"
+msgstr "'this' は | オブジェクトではありません"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "プロパティはアクセサーと値の両方になることはできません"
 
diff --git a/po/ka.po b/po/ka.po
index 61fee26b077..54d53819570 100644
--- a/po/ka.po
+++ b/po/ka.po
@@ -3934,15 +3934,15 @@ msgstr "პირობითი აგება გამორთულია"
 msgid "Expected '@'"
 msgstr "მოველოდი '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript აგების შეცდომა"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript გაშვების გარემოს შეცდომა"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "უცნობი გაშვების გარემოს შეცდომა"
 
@@ -4062,6 +4062,12 @@ msgid "'this' is not a | object"
 msgstr "'this'-ი | ტიპის ობიექტი არაა"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a | object"
+msgid "'key' is not an object"
+msgstr "'this'-ი | ტიპის ობიექტი არაა"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/ko.po b/po/ko.po
index 627c6e58e6c..2adb05f2945 100644
--- a/po/ko.po
+++ b/po/ko.po
@@ -3938,15 +3938,15 @@ msgstr "조건부 컴파일이 해제되었습니다"
 msgid "Expected '@'"
 msgstr "'@'가 필요합니다"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript 컴파일 오류"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript 런타임 오류"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "알 수 없는 런타임 오류"
 
@@ -4068,6 +4068,12 @@ msgid "'this' is not a | object"
 msgstr "'this'는 '|' 개체가 아닙니다"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a | object"
+msgid "'key' is not an object"
+msgstr "'this'는 '|' 개체가 아닙니다"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "속성에 접근자와 값을 둘 다 지정할 수는 없습니다"
 
diff --git a/po/lt.po b/po/lt.po
index 34912556d08..f9a24586dae 100644
--- a/po/lt.po
+++ b/po/lt.po
@@ -3955,15 +3955,15 @@ msgstr "Sąlyginis kompiliavimas išjungtas"
 msgid "Expected '@'"
 msgstr "Tikėtasi „@“"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript kompiliavimo klaida"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript vykdymo klaida"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Nežinoma vykdymo klaida"
 
@@ -4084,6 +4084,12 @@ msgid "'this' is not a | object"
 msgstr "„Šis“ nėra | objektas"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a | object"
+msgid "'key' is not an object"
+msgstr "„Šis“ nėra | objektas"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "Savybė negali turėti ir kreipiklių, ir reikšmės"
 
diff --git a/po/ml.po b/po/ml.po
index 99885618c8a..133bf2f3cb9 100644
--- a/po/ml.po
+++ b/po/ml.po
@@ -3860,15 +3860,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr ""
 
@@ -3988,6 +3988,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/nb_NO.po b/po/nb_NO.po
index 6cd247199d7..196dba2c7fe 100644
--- a/po/nb_NO.po
+++ b/po/nb_NO.po
@@ -3974,15 +3974,15 @@ msgstr "Avhengig kompilering er skrudd av"
 msgid "Expected '@'"
 msgstr "Forventet '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript kompileringsfeil"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4111,6 +4111,12 @@ msgid "'this' is not a | object"
 msgstr "'[object]' er ikke et dataobjekt"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'[object]' is not a date object"
+msgid "'key' is not an object"
+msgstr "'[object]' er ikke et dataobjekt"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/nl.po b/po/nl.po
index c713df00259..4cc269ca310 100644
--- a/po/nl.po
+++ b/po/nl.po
@@ -3965,15 +3965,15 @@ msgstr "Conditionele compilatie is uitgeschakeld"
 msgid "Expected '@'"
 msgstr "Verwacht '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript compilatie fout"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript runtime-fout"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Onbekende runtime-fout"
 
@@ -4096,6 +4096,12 @@ msgid "'this' is not a | object"
 msgstr "'this' is geen | object"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a | object"
+msgid "'key' is not an object"
+msgstr "'this' is geen | object"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "Eigenschap kan niet zowel accessors als een waarde hebben"
 
diff --git a/po/or.po b/po/or.po
index c4f294a8023..37c93ac1dcd 100644
--- a/po/or.po
+++ b/po/or.po
@@ -3858,15 +3858,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr ""
 
@@ -3986,6 +3986,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/pa.po b/po/pa.po
index c237710a6df..c26fe2e6b92 100644
--- a/po/pa.po
+++ b/po/pa.po
@@ -3858,15 +3858,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr ""
 
@@ -3986,6 +3986,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/pl.po b/po/pl.po
index 5d337315e45..586abb96f6f 100644
--- a/po/pl.po
+++ b/po/pl.po
@@ -3977,15 +3977,15 @@ msgstr "Warunkowa kompilacja jest wyłączona"
 msgid "Expected '@'"
 msgstr "Oczekiwano '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Błąd kompilacji Microsoft JScript"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Błąd biblioteki uruchomieniowej Microsoft JScript"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Nieznany błąd biblioteki uruchomieniowej"
 
@@ -4112,6 +4112,12 @@ msgid "'this' is not a | object"
 msgstr "'this' nie jest obiektem Map"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a Map object"
+msgid "'key' is not an object"
+msgstr "'this' nie jest obiektem Map"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "Własność nie może mieć zarówno akcesorów i wartości"
 
diff --git a/po/pt_BR.po b/po/pt_BR.po
index 7125af4bb1a..5dc04db5288 100644
--- a/po/pt_BR.po
+++ b/po/pt_BR.po
@@ -3973,15 +3973,15 @@ msgstr "Compilação condicional está desligada"
 msgid "Expected '@'"
 msgstr "Esperado '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript erro de compilação"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript erro de execução"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Erro de execução desconhecido"
 
@@ -4108,6 +4108,12 @@ msgid "'this' is not a | object"
 msgstr "'this' não é um objeto Map"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a Map object"
+msgid "'key' is not an object"
+msgstr "'this' não é um objeto Map"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "Propriedade não pode ter ambos acessores e valor"
 
diff --git a/po/pt_PT.po b/po/pt_PT.po
index b5a9a956154..fd13563d45d 100644
--- a/po/pt_PT.po
+++ b/po/pt_PT.po
@@ -4022,15 +4022,15 @@ msgstr "A compilação condicional está desactivada"
 msgid "Expected '@'"
 msgstr "Esperado '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4159,6 +4159,12 @@ msgid "'this' is not a | object"
 msgstr "'[object]' não é um objecto de data"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'[object]' is not a date object"
+msgid "'key' is not an object"
+msgstr "'[object]' não é um objecto de data"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/rm.po b/po/rm.po
index 1c45852a578..71e4f7cd1ac 100644
--- a/po/rm.po
+++ b/po/rm.po
@@ -3888,15 +3888,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr ""
 
@@ -4016,6 +4016,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/ro.po b/po/ro.po
index 7a0e69c45bf..874d83442f8 100644
--- a/po/ro.po
+++ b/po/ro.po
@@ -3975,15 +3975,15 @@ msgstr "Compilarea condițională este dezactivată"
 msgid "Expected '@'"
 msgstr "Se așteaptă „@”"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4114,6 +4114,12 @@ msgid "'this' is not a | object"
 msgstr "„[obiect]” nu este un obiect de tip dată"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'[object]' is not a date object"
+msgid "'key' is not an object"
+msgstr "„[obiect]” nu este un obiect de tip dată"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/ru.po b/po/ru.po
index 39fc1d5d72d..b30e3cd0e1a 100644
--- a/po/ru.po
+++ b/po/ru.po
@@ -3980,15 +3980,15 @@ msgstr "Условная компиляция отключена"
 msgid "Expected '@'"
 msgstr "Ожидается «@»"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Ошибка компиляции Microsoft JScript"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Ошибка выполнения Microsoft JScript"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Неизвестная ошибка времени выполнения"
 
@@ -4115,6 +4115,12 @@ msgid "'this' is not a | object"
 msgstr "«this» не объект типа «Map»"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a Map object"
+msgid "'key' is not an object"
+msgstr "«this» не объект типа «Map»"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "Свойство не может одновременно иметь методы для доступа и значение"
 
diff --git a/po/si.po b/po/si.po
index e544982a6d2..8455e4f090f 100644
--- a/po/si.po
+++ b/po/si.po
@@ -3907,15 +3907,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr "අපේක්ෂා කරේ '='"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4044,6 +4044,12 @@ msgid "'this' is not a | object"
 msgstr "'%s' වලංගු තොට නමක් නෙමෙයි."
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'%s' is not a valid port name"
+msgid "'key' is not an object"
+msgstr "'%s' වලංගු තොට නමක් නෙමෙයි."
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/sk.po b/po/sk.po
index 7b810724b42..a308c9a924e 100644
--- a/po/sk.po
+++ b/po/sk.po
@@ -3944,15 +3944,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4079,6 +4079,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/sl.po b/po/sl.po
index 82581293682..8c700c47485 100644
--- a/po/sl.po
+++ b/po/sl.po
@@ -4052,15 +4052,15 @@ msgstr "Pogojno kodno prevajanje je izklopljeno"
 msgid "Expected '@'"
 msgstr "Pričakovan je bil ';'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4193,6 +4193,12 @@ msgid "'this' is not a | object"
 msgstr "'[object]' ni predmet datuma"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'[object]' is not a date object"
+msgid "'key' is not an object"
+msgstr "'[object]' ni predmet datuma"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/sr_RS@cyrillic.po b/po/sr_RS@cyrillic.po
index d0594625094..9a52b4501d9 100644
--- a/po/sr_RS@cyrillic.po
+++ b/po/sr_RS@cyrillic.po
@@ -4027,15 +4027,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr "Очекивано ';'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 msgid "Unknown runtime error"
 msgstr "Непознат извор"
@@ -4167,6 +4167,12 @@ msgid "'this' is not a | object"
 msgstr "„[object]“ није временски објекат"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'[object]' is not a date object"
+msgid "'key' is not an object"
+msgstr "„[object]“ није временски објекат"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/sr_RS@latin.po b/po/sr_RS@latin.po
index 70f10d20e01..2d359bee9b0 100644
--- a/po/sr_RS@latin.po
+++ b/po/sr_RS@latin.po
@@ -4113,15 +4113,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr "Očekivano ';'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 msgid "Unknown runtime error"
 msgstr "Nepoznat izvor"
@@ -4253,6 +4253,12 @@ msgid "'this' is not a | object"
 msgstr "„[object]“ nije vremenski objekat"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'[object]' is not a date object"
+msgid "'key' is not an object"
+msgstr "„[object]“ nije vremenski objekat"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/sv.po b/po/sv.po
index c0ab7b26a75..83ae75f568f 100644
--- a/po/sv.po
+++ b/po/sv.po
@@ -4001,15 +4001,15 @@ msgstr "Villkorlig kompilering är avslagen"
 msgid "Expected '@'"
 msgstr "'@' förväntades"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4138,6 +4138,12 @@ msgid "'this' is not a | object"
 msgstr "'[object]' är inte ett datumobjekt"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'[object]' is not a date object"
+msgid "'key' is not an object"
+msgstr "'[object]' är inte ett datumobjekt"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/ta.po b/po/ta.po
index 10e09e46c4c..0adf49fb54f 100644
--- a/po/ta.po
+++ b/po/ta.po
@@ -3874,15 +3874,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr ""
 
@@ -4001,6 +4001,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/te.po b/po/te.po
index 3559e65bcc8..c11b6fedf48 100644
--- a/po/te.po
+++ b/po/te.po
@@ -3858,15 +3858,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr ""
 
@@ -3986,6 +3986,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/th.po b/po/th.po
index 6939ce74885..d83d6704ba0 100644
--- a/po/th.po
+++ b/po/th.po
@@ -3920,15 +3920,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown printer driver."
 msgid "Unknown runtime error"
@@ -4052,6 +4052,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/tr.po b/po/tr.po
index 2252617f710..bf35282d340 100644
--- a/po/tr.po
+++ b/po/tr.po
@@ -3957,15 +3957,15 @@ msgstr "Şartlı derleme kapatıldı"
 msgid "Expected '@'"
 msgstr "Beklenen '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript derleme hatası"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript çalışma zamanı hatası"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "Bilinmeyen çalışma zamanı hatası"
 
@@ -4088,6 +4088,12 @@ msgid "'this' is not a | object"
 msgstr "'bu' bir | nesne değil"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a | object"
+msgid "'key' is not an object"
+msgstr "'bu' bir | nesne değil"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "Nesnenin erişimcisi ve değeri birden olamaz"
 
diff --git a/po/uk.po b/po/uk.po
index 439a52fac87..20fa0a352b8 100644
--- a/po/uk.po
+++ b/po/uk.po
@@ -3972,15 +3972,15 @@ msgstr "Умовна компіляція вимкнена"
 msgid "Expected '@'"
 msgstr "Очікується ';'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 #, fuzzy
 #| msgid "Unknown error"
 msgid "Unknown runtime error"
@@ -4108,6 +4108,12 @@ msgid "'this' is not a | object"
 msgstr "'це' не є Map об'єкта"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a Map object"
+msgid "'key' is not an object"
+msgstr "'це' не є Map об'єкта"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "Властивість не може одночасно мати доступ і значення"
 
diff --git a/po/wa.po b/po/wa.po
index cf639f2c38e..6a1b46de1bf 100644
--- a/po/wa.po
+++ b/po/wa.po
@@ -3924,15 +3924,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr ""
 
@@ -4053,6 +4053,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/wine.pot b/po/wine.pot
index 7773c617ac4..b79e5c2c480 100644
--- a/po/wine.pot
+++ b/po/wine.pot
@@ -3813,15 +3813,15 @@ msgstr ""
 msgid "Expected '@'"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr ""
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr ""
 
@@ -3940,6 +3940,10 @@ msgid "'this' is not a | object"
 msgstr ""
 
 #: dlls/jscript/jscript.rc:81
+msgid "'key' is not an object"
+msgstr ""
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr ""
 
diff --git a/po/zh_CN.po b/po/zh_CN.po
index 59712a21411..c4ce0bf0cc3 100644
--- a/po/zh_CN.po
+++ b/po/zh_CN.po
@@ -3904,15 +3904,15 @@ msgstr "条件编译已关闭"
 msgid "Expected '@'"
 msgstr "期望 '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript 编译错误"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript 运行时错误"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "未知运行时错误"
 
@@ -4033,6 +4033,12 @@ msgid "'this' is not a | object"
 msgstr "'this' 不是 | 对象"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a | object"
+msgid "'key' is not an object"
+msgstr "'this' 不是 | 对象"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "属性不能同时包含存取器和值"
 
diff --git a/po/zh_TW.po b/po/zh_TW.po
index da62463563f..6452c2bf9c3 100644
--- a/po/zh_TW.po
+++ b/po/zh_TW.po
@@ -3912,15 +3912,15 @@ msgstr "條件編譯已關閉"
 msgid "Expected '@'"
 msgstr "預期為 '@'"
 
-#: dlls/jscript/jscript.rc:83
+#: dlls/jscript/jscript.rc:84
 msgid "Microsoft JScript compilation error"
 msgstr "Microsoft JScript 編譯錯誤"
 
-#: dlls/jscript/jscript.rc:84
+#: dlls/jscript/jscript.rc:85
 msgid "Microsoft JScript runtime error"
 msgstr "Microsoft JScript 執行期錯誤"
 
-#: dlls/jscript/jscript.rc:85 dlls/vbscript/vbscript.rc:64
+#: dlls/jscript/jscript.rc:86 dlls/vbscript/vbscript.rc:64
 msgid "Unknown runtime error"
 msgstr "不明執行期錯誤"
 
@@ -4041,6 +4041,12 @@ msgid "'this' is not a | object"
 msgstr "'this' 不是一個 | 物件"
 
 #: dlls/jscript/jscript.rc:81
+#, fuzzy
+#| msgid "'this' is not a | object"
+msgid "'key' is not an object"
+msgstr "'this' 不是一個 | 物件"
+
+#: dlls/jscript/jscript.rc:82
 msgid "Property cannot have both accessors and a value"
 msgstr "屬性不可同時有存取子和值"