[Bug 1531583] Re: Webbrowser-app losing saved state upon restart

[Pat McGowan]

** Changed in: canonical-devices-system-image
   Status: Fix Committed => Fix Released

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Title:
  Webbrowser-app losing saved state upon restart

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[Bug 1531583] Re: Webbrowser-app losing saved state upon restart

[Launchpad Bug Tracker]

This bug was fixed in the package webbrowser-app -
0.23+16.04.20160322-0ubuntu1

---
webbrowser-app (0.23+16.04.20160322-0ubuntu1) xenial; urgency=medium

  * Make google maps work in complete mode on tablets. (LP: #1560079)
  * Tentative fix for a bug where the session state stored on disk is
apparently corrupted, thus discarding the current browsing session.
(LP: #1531583)

 -- Olivier Tilloy   Tue, 22 Mar 2016
06:46:57 +

** Changed in: webbrowser-app (Ubuntu)
   Status: In Progress => Fix Released

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Title:
  Webbrowser-app losing saved state upon restart

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[Bug 1531583] Re: Webbrowser-app losing saved state upon restart

[Jean-Baptiste Lallement]

** Changed in: canonical-devices-system-image
   Status: In Progress => Fix Committed

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Title:
  Webbrowser-app losing saved state upon restart

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[Bug 1531583] Re: Webbrowser-app losing saved state upon restart

[Jean-Baptiste Lallement]

** Changed in: canonical-devices-system-image
   Status: New => In Progress

** Changed in: canonical-devices-system-image
   Importance: Undecided => High

** Changed in: canonical-devices-system-image
 Assignee: (unassigned) => Bill Filler (bfiller)

** Changed in: canonical-devices-system-image
Milestone: None => ww08-2016

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Title:
  Webbrowser-app losing saved state upon restart

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[Bug 1531583] Re: Webbrowser-app losing saved state upon restart

[Olivier Tilloy]

** Also affects: canonical-devices-system-image
   Importance: Undecided
   Status: New

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Title:
  Webbrowser-app losing saved state upon restart

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[Bug 1531583] Re: Webbrowser-app losing saved state upon restart

[Olivier Tilloy]

** Changed in: webbrowser-app (Ubuntu)
 Assignee: (unassigned) => Olivier Tilloy (osomon)

** Changed in: webbrowser-app (Ubuntu)
   Status: Incomplete => In Progress

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  Webbrowser-app losing saved state upon restart

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[Bug 1531583] Re: Webbrowser-app losing saved state upon restart

[Launchpad Bug Tracker]

** Branch linked: lp:~osomon/webbrowser-app/sessionstorage-race

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  Webbrowser-app losing saved state upon restart

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[Bug 1531583] Re: Webbrowser-app losing saved state upon restart

[Olivier Tilloy]

A wild guess is that the browser is trying to save the current session
while the app gets suspended, resulting in a corrupt session file. When
the app is launched again, it tries to read the corrupt file, and falls
back to not restoring anything.

I’ll see if I can add a mechanism to ensure that the session state is
written to a temporary file first, and if that succeed, move that file
to the browser’s data directory. This will hopefully make it more
robust.

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  Webbrowser-app losing saved state upon restart

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[Bug 1531583] Re: Webbrowser-app losing saved state upon restart

[Philippe Piquer]

Browser has 2 tabs open , i go away from the the browser to use another
app, when i come back the browser is blurred and reloads only the
startpage.

Can be reproduced again and again.

OTA9 on BQ Aquaris 4.5

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  Webbrowser-app losing saved state upon restart

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[Bug 1531583] Re: Webbrowser-app losing saved state upon restart

[Olivier Tilloy]

I’ve never hit that issue myself, but it is concerning indeed.
The state file after the app has restarted will almost always look normal and 
reflect the current state, so it won’t be very interesting. What would be much 
more interesting for debugging purposes is the state file after the app has 
crashed/been killed and before it is launched again.

** Changed in: webbrowser-app (Ubuntu)
   Importance: Undecided => High

** Changed in: webbrowser-app (Ubuntu)
   Status: New => Incomplete

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  Webbrowser-app losing saved state upon restart

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[Bug 1531583] Re: Webbrowser-app losing saved state upon restart

[Michael Terry]

OK, just had this happen to me again when I was in a position to debug
it.  I had several tabs open.  I later went back to the webbrowser-app
(don't remember if it restarted or I was opening it fresh or what) and
the tabs were gone, replaced by the start page.

The session files seem normal (i.e. they describe the current state of
the webbrowser-app).

.local/share/webbrowser-app/session.json:
{"currentIndex":0,"tabs":[{"uniqueId":"BrowserTab_QMLTYPE_170(0xb87282a8)-1452995535081","url":"http://start.ubuntu.com/current/Google/?sourceid=hp","title":"Ubuntu
 Start 
Page","icon":"http://start.ubuntu.com/favicon.ico","preview":"","savedState":"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
 
GQAZQBuAAIwBGgAbAAMaABpAGQAZABlAG4AAgAAADAEcwBhAAwAAABoAGkAZABkAGUAbgACMAQAAABpAGUADGgAaQBkAGQAZQBuAAIwCPA/ikW+530pBQCLRb7nfSkFAAEIAAAIAAD/AAEAAAEYaHR0cDovL3N0YXJ0LnVidW50dS5jb20vAPyVRDAUiC4AAMgBAA=="}]}


.local/share/webbrowser-app/session.json.lock:
851
webbrowser-app
ubuntu-phablet

(851 is the current webbrowser-app instance, showing the start page)

There are several crash files, but nothing for webbrowser-app.

Anything else to try?  This has happened to me several times since
reporting it ten days ago.  Maybe 3 or 4 in that time?  Very annoying.
And we're about to release OTA 9, presumably with this bug still
present.

Has anyone else hit this?

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  Webbrowser-app losing saved state upon restart

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