Extreme bad performance, freeze and crash of browser in IE6/7

Hi!

We use an Orbeon instance embedded in an rather conventional HTML page.
To inject the prerendered, by XForms described form, we use Orbeons'
portlet option and insert the result via PHP curl into the plain HTML
"frame" (no iframe or stuff like that) which is enriched by several
other forms and javascript. We don't use java portlets.

The XForms application behaves --more or less-- performantly on IE6 and
IE7 if called on its' own but as soon as embedded into the HTML the
application freezes the browser or even the system for a long time (CPU
100%, steadily increasing RAM usage).
On Firefox the system is alle the time behaving ok.

Did anybody encounter similar problems or does anyone know about similar
problems or even have a solution?

Thx a lot,

Thorsten


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We have exactly the same problem with our xforms (Under Orbeon 3.6).

Frank



-----Original Message-----
From: J. Thorsten Stumpf [mailto:[hidden email]]
Sent: 04 February 2009 10:33
To: [hidden email]
Subject: [ops-users] Extreme bad performance, freeze and crash of browser in
IE6/7

Hi!

We use an Orbeon instance embedded in an rather conventional HTML page.
To inject the prerendered, by XForms described form, we use Orbeons'
portlet option and insert the result via PHP curl into the plain HTML
"frame" (no iframe or stuff like that) which is enriched by several other
forms and javascript. We don't use java portlets.

The XForms application behaves --more or less-- performantly on IE6 and
IE7 if called on its' own but as soon as embedded into the HTML the
application freezes the browser or even the system for a long time (CPU
100%, steadily increasing RAM usage).
On Firefox the system is alle the time behaving ok.

Did anybody encounter similar problems or does anyone know about similar
problems or even have a solution?

Thx a lot,

Thorsten



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One very simple way for me to crash IE is going the orbeon site/ example apps/ source viewer
Ciao IE, it uses nearly 100% of CPU, we're forced to kill it through procexp...

Reproduced on IE6 on win2k and IE7 on XP


Cordialement,

Alban MAILLERE
02-23-20-91-14
-------------------------------------
MICROPOLE-UNIVERS
Immeuble Les Galaxies, 3, square René Cassin
35700 Rennes

Email : [hidden email]
Fax : + 33.2.23.20.11.12
http://www.micropole-univers.com
------------------------------------


-----Message d'origine-----
De : yf508 [mailto:[hidden email]]
Envoyé : mercredi 4 février 2009 13:29
À : [hidden email]
Objet : [ops-users] RE: Extreme bad performance, freeze and crash of browser in IE6/7

We have exactly the same problem with our xforms (Under Orbeon 3.6).

Frank



-----Original Message-----
From: J. Thorsten Stumpf [mailto:[hidden email]]
Sent: 04 February 2009 10:33
To: [hidden email]
Subject: [ops-users] Extreme bad performance, freeze and crash of browser in
IE6/7

Hi!

We use an Orbeon instance embedded in an rather conventional HTML page.
To inject the prerendered, by XForms described form, we use Orbeons'
portlet option and insert the result via PHP curl into the plain HTML
"frame" (no iframe or stuff like that) which is enriched by several other
forms and javascript. We don't use java portlets.

The XForms application behaves --more or less-- performantly on IE6 and
IE7 if called on its' own but as soon as embedded into the HTML the
application freezes the browser or even the system for a long time (CPU
100%, steadily increasing RAM usage).
On Firefox the system is alle the time behaving ok.

Did anybody encounter similar problems or does anyone know about similar
problems or even have a solution?

Thx a lot,

Thorsten



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What version of Orbeon Forms are you using?

-Erik

On Feb 4, 2009, at 5:33 AM, J. Thorsten Stumpf wrote:
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Orbeon Forms - Web Forms for the Enterprise Done the Right Way
http://www.orbeon.com/



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We're using 3.7.0beta1.200808260135

Thx for your input in advance!

Erik Bruchez schrieb:

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On Feb 9, 2009, at 4:58 AM, J. Thorsten Stumpf wrote:

> We're using 3.7.0beta1.200808260135

Did you get a chance to try this with the latest nightly builds?

You are saying that you just load the page your HTML around the form  
to get this, that 's it?

Alex
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Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
Orbeon's Blog: http://www.orbeon.com/blog/
Personal Blog: http://avernet.blogspot.com/
Twitter - http://twitter.com/avernet



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Hi!

Alessandro Vernet schrieb:
> On Feb 9, 2009, at 4:58 AM, J. Thorsten Stumpf wrote:
>
>> We're using 3.7.0beta1.200808260135
>
> Did you get a chance to try this with the latest nightly builds?

Not yet.

But we're going to try one of the nightly builds this week.
I will report the results...


> You are saying that you just load the page your HTML around the form to
> get this, that 's it?

Yes, that's right. We just embed it into our HTML-Sourcecode (in fact
some parts of our code are created on client side by JavaScript).

Maybe that interferes with Orbeon JavaScript-Actions in a bad way?


TIA,

Thorsten


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On Feb 23, 2009, at 2:01 AM, J. Thorsten Stumpf wrote:

> Yes, that's right. We just embed it into our HTML-Sourcecode (in  
> fact some parts of our code are created on client side by JavaScript).
>
> Maybe that interferes with Orbeon JavaScript-Actions in a bad way?

It is hard to say if what you are doing "helps" IE to get in this hung  
state, but the fact that we can reproduce this just by going to "view  
source code" in the examples shows that there is enough in the vanilla  
Orbeon Forms code to reproduce this. I have added a bug for this,  
assigning it our highest priority:

http://forge.objectweb.org/tracker/index.php?func=detail&aid=312972&group_id=168&atid=350207

Alex
--
Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
Orbeon's Blog: http://www.orbeon.com/blog/
Personal Blog: http://avernet.blogspot.com/
Twitter - http://twitter.com/avernet



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On Feb 23, 2009, at 10:35 AM, Alessandro Vernet wrote:

> It is hard to say if what you are doing "helps" IE to get in this  
> hung state, but the fact that we can reproduce this just by going to  
> "view source code" in the examples shows that there is enough in the  
> vanilla Orbeon Forms code to reproduce this. I have added a bug for  
> this, assigning it our highest priority:
>
> http://forge.objectweb.org/tracker/index.php?func=detail&aid=312972&group_id=168&atid=350207

This is now fixed. "Unfortunately", the issue was very local to that  
example, so this fix won't solve a similar problem you have in another  
app. But there is something we can learn from this:

IE detects infinite loops in JavaScript. That is, if you have some  
code that does the equivalent of "while (true) {}", IE will fairly  
quickly ask users if they want to stop the JavaScript code on that  
page which "is running slowly".

But IE doesn't detect an infinite loop that you cause by changing  
something in the DOM, which causes an event to happen, which causes  
your JavaScript code to run, code in which you change the DOM, and so  
on. This is what was happening in the source code viewer on IE, and  
maybe you have something similar happening in your code as well.

Alex
--
Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
Orbeon's Blog: http://www.orbeon.com/blog/
Personal Blog: http://avernet.blogspot.com/
Twitter - http://twitter.com/avernet



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Thorsten,

On Feb 23, 2009, at 2:01 AM, J. Thorsten Stumpf wrote:

>> On Feb 9, 2009, at 4:58 AM, J. Thorsten Stumpf wrote:
>>> We're using 3.7.0beta1.200808260135
>> Did you get a chance to try this with the latest nightly builds?
>
> Not yet.
>
> But we're going to try one of the nightly builds this week.
> I will report the results...

I would be very interested to see what you find running your code  
with the latest Orbeon Forms code.

> Yes, that's right. We just embed it into our HTML-Sourcecode (in  
> fact some parts of our code are created on client side by JavaScript).
>
> Maybe that interferes with Orbeon JavaScript-Actions in a bad way?

Obviously there is something going on related to what is on the "rest  
of the page", but what? I have been dealing with that case we had in  
the source code viewer, as well as another case for a client, so if  
you have a way for us to reproduce this, I'd be interested in running  
your code to see what is going on.

Alex
--
Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
Orbeon's Blog: http://www.orbeon.com/blog/
Personal Blog: http://avernet.blogspot.com/



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