[Webkit-unassigned] [Bug 110424] New: Web Inspector: Cannot deep expand an element that has previously been partially expanded

Wed Feb 20 18:35:24 PST 2013

https://bugs.webkit.org/show_bug.cgi?id=110424

           Summary: Web Inspector: Cannot deep expand an element that has
                    previously been partially expanded
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: graouts at apple.com
                CC: timothy at apple.com, keishi at webkit.org,
                    pmuellr at yahoo.com, joepeck at webkit.org,
                    pfeldman at chromium.org, yurys at chromium.org,
                    apavlov at chromium.org, loislo at chromium.org,
                    vsevik at chromium.org,
                    webkit-bug-importer at group.apple.com,
                    web-inspector-bugs at googlegroups.com

While we added support for true deep-expansion with https://bugs.webkit.org/show_bug.cgi?id=66868, there is (at least) one case where this fails.  In InspectorDOMAgent::pushChildNodesToFrontend(), if we find that we'd already requested children for the given node, we return early:

    if (m_childrenRequested.contains(nodeId))
        return;

This could easily happen for the <body> or <html> elements, or basically any element that you inspect directly to open the inspector.

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