[Webkit-unassigned] [Bug 158489] New: popstate events are lost when network connection is in progress

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=158489

            Bug ID: 158489
           Summary: popstate events are lost when network connection is in
                    progress
    Classification: Unclassified
           Product: WebKit
           Version: Safari 9
          Hardware: All
               URL: http://www.bcherry.net/playground/pushstate
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: History
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: andrew at productpains.com
                CC: abarth at webkit.org, ap at webkit.org, bcherry at gmail.com,
                    beidson at apple.com, commit-queue at webkit.org,
                    fishd at chromium.org, mathias at qiwi.be,
                    mihaip at chromium.org, rik at webkit.org,
                    tonyg at chromium.org, zr at facebook.com

+++ This bug was initially created as a clone of Bug #42940 +++

User history navigation (back/forward buttons) while there is network traffic does not always fire a popstate event.  These events are completely lost, and can get an application into the wrong state, where the user navigated through their history, but the app was never notified.  Seen in Safari 9.1 (11601.5.17.1) and Mobile Safari on iOS 9.3.2.  Issue is not present on Chrome and Firefox.

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