Javascript error in uwc (reply, forward buttons)

Question

Our users have reported an "annoying" repeatable error which occurs at least once per session using UWC web-client.
When they log in to UWC, read a message and click the buttons named Reply, Reply All, Forward, Forward Inline, an alert pops up:
"JavaScript Error
http://mail.domain.ru/uwc/webmail/en/mail.html?lang=en&laurel=on&cal=1, Line=384"
'null' is null or not an object"
When they click the button for a second time and afterwards, the requested action (Forward, etc.) works correctly. If the user logs off and logs in again, the first subsequent click triggers the error.
I have seen this in MS Internet Explorer 6.0 SP2 on several computers, both with original English Windows and localized version.
I couldn't reproduce the error with MSIE 6.0 SP1 or Firefox browsers.
Server-side versions:
# showrev -p | grep uwc
Patch: 126233-04 Obsoletes: Requires: Incompatibles: 118042-01 Packages: SUNWuwc-l10n
Patch: 122794-10 Obsoletes: 118541-22, 117288-99, 117820-13, 119157-07, 119160-07 Requires: Incompatibles: Packages: SUNWuwc
Patch: 122794-17 Obsoletes: 118541-43, 117288-99, 117820-13, 119157-07 Requires: Incompatibles: Packages: SUNWuwc
# imsimta version
Sun Java(tm) System Messaging Server 6.3-6.03 (built Mar 14 2008; 64bit)
libimta.so 6.3-6.03 (built 17:15:08, Mar 14 2008; 64bit)
SunOS sunmail 5.10 Generic_127112-07 i86pc i386 i86pc
"Line 384" of the resulting HTML code (as in View Source of the failing browser) contains the "return" line of the following function:
{code}
383: function dataFrameHTML() {
384: return main.getBody(main.chrome2,true) + (tfr && state == 'POST' ? tfr : '')
385: }
{code}
Is there anything reasonable to do do solve this problem? :)

Answer 1

JimKlimov wrote:
Our users have reported an "annoying" repeatable error which occurs at least once per session using UWC web-client.
When they log in to UWC, read a message and click the buttons named Reply, Reply All, Forward, Forward Inline, an alert pops up:All of these actions result in a pop-up window. There have been problems fixed in the past for the "compose" window pop-up which occurred due to pop-up blockers (e.g. google/yahoo toolbar blocker or the IE6sp2/IE7 pop-up blocker).
When they click the button for a second time and afterwards, the requested action (Forward, etc.) works correctly. If the user logs off and logs in again, the first subsequent click triggers the error.
I have seen this in MS Internet Explorer 6.0 SP2 on several computers, both with original English Windows and localized version.
I couldn't reproduce the error with MSIE 6.0 SP1 or Firefox browsers.Try disabling any pop-up blockers in IE6.0 SP2 and see if the problem persists:
1. From Internet Explorer 6, Click "Tools".
2. Select "Pop-Up Blocker".
3. Select "Turn off Pop-up Blocker".
"Line 384" of the resulting HTML code (as in View Source of the failing browser) contains the "return" line of the following function:
383: function dataFrameHTML() {
384:   return main.getBody(main.chrome2,true) + (tfr && state == 'POST' ? tfr : '')
385: }Is there anything reasonable to do do solve this problem? :)In the past we have wrapped the javascript call that failed in a test so if the window was closed by a pop-up blocker before the javascript could propagate it with data, the call didn't occur. However this didn't allow the pop-up to occur, it just stopped the javascript error.
Regards,
Shane.