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Add simple origin check

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This commit is contained in:
Matt Bierner 2022-02-01 12:48:49 -08:00
parent 265cca240a
commit ab2fccd147
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GPG key ID: 099C331567E11888
1 changed files with 5 additions and 0 deletions
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5
extensions/image-preview/media/main.js
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@ -319,6 +319,11 @@
});
window.addEventListener('message', e => {
if (e.origin !== window.origin) {
console.error('Dropping message from unknown origin in image preview');
return;
}
switch (e.data.type) {
case 'setScale':
updateScale(e.data.scale);