Bug 1114863

Summary:	Win7/IE9 - webadmin not usable
Product:	[Retired] oVirt	Reporter:	Tomas Jelinek <tjelinek>
Component:	ovirt-engine-webadmin	Assignee:	Alexander Wels <awels>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Petr Kubica <pkubica>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	3.5	CC:	bugs, ecohen, gklein, iheim, mgoldboi, rbalakri, vszocs, yeylon
Target Milestone:	---
Target Release:	3.5.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	ux
Fixed In Version:	ovirt-3.5.0_rc1.1	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1130580 (view as bug list)		Environment:
Last Closed:	2014-10-17 12:37:03 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	UX	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Tomas Jelinek 2014-07-01 07:40:48 UTC

1: have a win7/IE9 machine
2: go to webadmin login screen
3: fill name and password
4: IE eats 100% of the CPU for about 10 minutes and than sometimes loads the main screen, sometimes does not
5: every click than behaves the same (100% of CPU eaten for couple of minutes)

expected results:
webadmin should work on IE9

additional info:
- user portal works fine on IE9
- my VM on which I have tested it had one 2.69 GHz CPU and 3GB of memory

Comment 1 Einav Cohen 2014-07-08 14:38:23 UTC

after discussing with Vojtech: might be related to the slow debug mode as well (potentially, a fix for the slow debug mode (will improve the performance for IE9 as well)

Comment 2 Alexander Wels 2014-07-28 17:21:23 UTC

The problem turns out to be that IE9 reports missing headers as blank instead of null. The code only checked for null and not blank, this caused an endless login loop causing requests to be repeated over and over again, eating up memory and cpu time.

Comment 3 Vojtech Szocs 2014-07-30 17:10:23 UTC

Relevant GWT issue: https://code.google.com/p/google-web-toolkit/issues/detail?id=7665

This is essentially IE9 browser quirk that we need to work around.

Comment 4 Petr Kubica 2014-09-11 12:23:34 UTC

Verified in 
ovirt: 3.5.0-0.0.master.20140821064931.gitb794d66.el6
IE9: 9.0.8112.16421
W7 SP1

Comment 5 Sandro Bonazzola 2014-10-17 12:37:03 UTC

oVirt 3.5 has been released and should include the fix for this issue.