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LibWeb: Null check container while creating srcdoc navigation params
Fixes https://github.com/SerenityOS/serenity/issues/21205 Fixes https://github.com/SerenityOS/serenity/issues/21240
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@ -502,7 +502,13 @@ static WebIDL::ExceptionOr<NavigationParams> create_navigation_params_from_a_src
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Optional<PolicyContainer> history_policy_container = entry->document_state->history_policy_container().visit(
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[](PolicyContainer const& c) -> Optional<PolicyContainer> { return c; },
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[](DocumentState::Client) -> Optional<PolicyContainer> { return {}; });
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auto policy_container = determine_navigation_params_policy_container(*response->url(), history_policy_container, {}, navigable->container_document()->policy_container(), {});
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PolicyContainer policy_container;
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if (navigable->container()) {
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// NOTE: Specification assumes that only navigables corresponding to iframes can be navigated to about:srcdoc.
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// We also use srcdoc to implement load_html() for top level navigables so we need to null check container
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// because it might be null.
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policy_container = determine_navigation_params_policy_container(*response->url(), history_policy_container, {}, navigable->container_document()->policy_container(), {});
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}
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// 7. Return a new navigation params, with
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// id: navigationId
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