I'm glad that you could solve your problem, Chen Ding.

Tucker, could this be a problem with the user agent? In that case the page should never show, but maybe the problem is connected to it.
http://code.google.com/p/chromium/issues/detail?id=5985


On Jul 21, 2009, at 1:34 PM, P T Withington wrote:

I suspect there may be some issue in browsers that aggressively try to cache.

I have seen similar issues in Safari 4 with Jira where reloading the same page causes just a blank page.

This makes me think somebody (either browser or server) is not getting their cache signals straight.

On 2009-07-21, at 07:32EDT, Chen Ding wrote:

Thanks for the help. It turned out that the problem was not caused by
OpenLaszlo, but by Chrome. The same code, if I use Firefox, it worked just
fine.
BTW, for your information:
 + Java JDK  jdk1.6.0_05
 + OS: Linux
 + Tomcat: the one that came with OpenLaszlo (tomcat-5.0.24)

Thanks again for the help!

Chen Ding

On Tue, Jul 21, 2009 at 7:21 PM, Raju Bitter <[email protected]> wrote:

Which versions of other software components do you use?
+ Java JDK
+ OS
+ Tomcat

I'll try to reproduce the problem.

- Raju

On Jul 21, 2009, at 11:37 AM, Chen Ding wrote:

I am sure the tomcat server was not crashed because if the button did not show up, if I reload the file again, the button might show up. It was just
not that certain that the application would be loaded.
Thanks for your recommendation. Here is what I did. I clicked the "SOLO" button for the "Deploy:" option. It popped up a dialog that generated a swf file for the application. If I load the swf file instead of the "lzx" file, that will not go through the "compiler", and that will be safer and more
efficient. Is this understanding right?

Thanks!

Chen Ding

On Mon, Jul 20, 2009 at 10:23 PM, P T Withington <[email protected]> wrote:

I'm only aware of this ever happening if the tomcat server crashes, so you
might want to look at your tomcat logs.

We highly recommend that deployed applications be compiled in SOLO mode so that you eliminate the overhead (and possible security issues) of running the tomcat-based compiler. The tomcat server and compiler are really
intended only as a development environment.


On 2009-07-20, at 00:30EDT, Chen Ding wrote:

Hi there,
It appears that when we load an lzx file, the system may fail loading
(i.e.,
not showing anything). Below is an example:

<canvas>
<button text="testing"/>
</canvas>

Try to load (and reload) this file multiple times. Sometimes, the button does not show up at all. This makes us worry very much. We are going to
roll
out our applications. This will simply kill the whole project.

It happened occasionally in the past, but we did not pay much attention
to
it, thought it might be our fault.

We are running 4.4.1, but the same problem appears in at least 4.3.1.

Your help is greatly appreciated!

Chen Ding







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