[Webkit-unassigned] [Bug 207408] New: Web Inspector: injected scripts for the worlds cleared before normal are lost

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=207408

            Bug ID: 207408
           Summary: Web Inspector: injected scripts for the worlds cleared
                    before normal are lost
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: pfeldman at chromium.org
                CC: inspector-bugzilla-changes at group.apple.com

This is a follow up to https://bugs.webkit.org/show_bug.cgi?id=206110, please see the discussion there.

To recap,

I believe there is a subtle issue here - when didClearWindowObjectInWorld is called for the User world before it is called for the Normal world, subsequent call to clear the normal world will erase this injected script from the InjectedScriptManager through m_injectedScriptManager->discardInjectedScripts().

This can either be patched via the following change to the dispatchDidClearWindowObjectsInAllWorlds (that is somewhat hacky), or via going back to instrumenting only normal worlds and iterating over the remaining worlds within agents explicitly.

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