When UniversalAccess zoom is enabled on macOS, access to the service 'com.apple.hiservices-xpcservice' is needed in the WebContent process, and a sandbox extension should be created.
Created attachment 415540 [details] Patch
Created attachment 415549 [details] Patch
Created attachment 415555 [details] Patch
<rdar://problem/72047078>
Comment on attachment 415555 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=415555&action=review > Source/WebKit/ChangeLog:9 > + When UniversalAccess zoom is enabled on macOS, access to the service 'com.apple.hiservices-xpcservice' is needed in the WebContent process, > + and a sandbox extension should be created. What in the WebContent process requires this? Is it something that could be proxied to the UIProcess instead?
(In reply to Sam Weinig from comment #5) > Comment on attachment 415555 [details] > Patch > > View in context: > https://bugs.webkit.org/attachment.cgi?id=415555&action=review > > > Source/WebKit/ChangeLog:9 > > + When UniversalAccess zoom is enabled on macOS, access to the service 'com.apple.hiservices-xpcservice' is needed in the WebContent process, > > + and a sandbox extension should be created. > > What in the WebContent process requires this? Is it something that could be > proxied to the UIProcess instead? That is a good point. This is required when calling UAZoomChangeFocus in FrameSelection::notifyAccessibilityForSelectionChange. I have uploaded a patch where this is proxied to the UI process in https://bugs.webkit.org/show_bug.cgi?id=219635. Thanks for reviewing!