[Webkit-unassigned] [Bug 216134] New: Each step in Page::updateRendering() should use the same set of documents

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=216134

            Bug ID: 216134
           Summary: Each step in Page::updateRendering() should use the
                    same set of documents
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: simon.fraser at apple.com

https://html.spec.whatwg.org/multipage/webappapis.html#event-loop-processing-model implies that once you've collected the set of documents in step 11.1, you use that same set for all the subsequent steps.

We don't follow this; we call forEachDocument() at each step, so potentially we'll pick up a new document that was added by the previous step.

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