Bug 52953 – [Qt] Incorrect Post/Redirect/Redirect/Get pattern processing

• Component: New Bugs
• Status: RESOLVED INVALID

[Ivan Shestakov]

Created attachment 79836 [details]
Test case Qt project

We all know about Post/Redirect/Get (PRG) pattern (http://en.wikipedia.org/wiki/Post/Redirect/Get). QtWebKit handles this  standart pattern without any issues.

In my development environment I also use Post/Redirect/Redirect/Get (PRRG) pattern. All popular browsers (IE 8, Chrome 8.0.552.237, Opera 10.63, Mozilla 3.6.12) handle this pattern ideally. But not QtWebKit.

The problem is the following: when you try to reload in QWebView last loaded page (after PRRG pattern was processed) QNAM unpredictably sends POST request to last loaded url instead of GET. As a result my web service will accept POST request. 
However, in all popular browsers reloading page (after PRRG was processed) leads to predictable GET request.

I created simple Qt GUI application to reproduce this bug (see TestPRRG_Qt_Project.zip attachment).

For PRRG pattern emulation I used fiddler2 (http://www.fiddler2.com/fiddler2/) with autoresponder feature and some fiddler autoresponse templates (see fiddler_PRRG_emul.zip attachment). If you want to emulate PRG pattern then use PRG_fiddler_emul.zip.

To reproduce this bug you should to: 
1. launch fiddler2 with appropriate autoresponse templates, 
2. compile and run application. Application will automatically send POST request to 'startUrl' (see source code).
4. check out application output window (in qt creator) or fiddler inspector area and you will see registered POST request to last loaded url instead of predictable GET request.

[Ivan Shestakov]

Created attachment 79837 [details]
Fiddler2 autoresponder templates for PRRG emulation

[Ivan Shestakov]

Created attachment 79838 [details]
Fiddler2 autoresponder templates for standart PRG pattern emulation

[Benjamin Poulain]

Please follow http://trac.webkit.org/wiki/QtWebKitBugs when reporing bug here.

[Jocelyn Turcotte]

=== Bulk closing of Qt bugs ===

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