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LibWeb: Make HTMLScriptElement.src getter resolve to absolute URL

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The src IDL attribute was previously implemented as an inline getter
that returned the raw attribute value. This broke spec semantics and
sites like Telegram Web that rely on document.currentScript.src to
compute Webpack’s publicPath.

According to the HTML Standard:
https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#reflecting-content-attributes-in-idl-attributes

For URL-reflecting attributes:
  1. If contentAttributeValue is null, then return the empty string.
  2. Let urlString be the result of encoding-parsing-and-serializing
     a URL given contentAttributeValue,
     relative to element’s node document.
  3. If urlString is not failure, then return urlString.

This patch moves the getter to HTMLScriptElement.cpp and implements
these steps.
This commit is contained in:
Pavel Shliak 2025-09-21 02:42:34 +04:00 • committed by Jelle Raaijmakers
commit 4ff7c9043b
Notes: github-actions[bot] 2025-10-07 19:56:07 +00:00
4 changed files with 51 additions and 1 deletions
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2
Libraries/LibWeb/HTML/HTMLScriptElement.h
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@ -62,7 +62,7 @@ public:
TrustedTypes::TrustedScriptOrString text() const { return child_text_content(); }
WebIDL::ExceptionOr<void> set_text(TrustedTypes::TrustedScriptOrString);
TrustedTypes::TrustedScriptURLOrString src() const { return Utf16String::from_utf8(get_attribute_value(AttributeNames::src)); }
TrustedTypes::TrustedScriptURLOrString src() const;
WebIDL::ExceptionOr<void> set_src(TrustedTypes::TrustedScriptURLOrString);
Variant<GC::Root<TrustedTypes::TrustedScript>, Utf16String, Empty> text_content() const;