NEW 262491
Extensions cannot target specific frames for css injections on webpages 
https://bugs.webkit.org/show_bug.cgi?id=262491
Summary Extensions cannot target specific frames for css injections on webpages
Kiara Rose
Reported 2023-10-02 10:57:36 PDT
Right now, when we create a user style sheet, we can only specify allFrames or the top frame for UserStyleSheet::create(). For the scripting.insertCSS() API, extensions should be able to specify specific frames for the style to inject to, but that is currently not possible with the WebKit APIs we have.
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Radar WebKit Bug Importer
Comment 1 2023-10-09 10:58:15 PDT
<rdar://problem/116689038>
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