[Webkit-unassigned] [Bug 166965] New: Browser history has duplicate entry after POST REDIRECT GET (PRG), press the back button and you are still on the same page instead of the previous one. All other browser behave correctly and redirect to the previous page.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=166965

            Bug ID: 166965
           Summary: Browser history has duplicate entry after POST
                    REDIRECT GET (PRG), press the back button and you are
                    still on the same page instead of the previous one.
                    All other browser behave correctly and redirect to the
                    previous page.
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: valeriob at gmail.com

Repro : 
Build url A with a link to url B, that has a form that POST REDIRECT GET to url B and press the back button.

All browser behave correctly and it's very user friendly in this way : 
Navigate to url A, press lunk to url B, Submit the form, press the back button, you see url A.
In chrome
Navigate to url A, press lunk to url B, Submit the form, press the back button, you still see url B.

if you check the history object on the console you will see that in chrome it has one more entry (the duplicate one).

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