[
https://issues.apache.org/jira/browse/WICKET-3420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12997531#comment-12997531
]
Juergen Donnerstag commented on WICKET-3420:
--------------------------------------------
you can add elements before and after. It's not immediately obvious though.
Essentially you must remember what you want to return after the <script> tag
and you return that when next() is called next time (don't forget to reset your
"rememberme" variable). You'll understand the idea when you realize that the
MarkupFilters are chained rather than called separately from an interator.
might be I'm mistaken, but I think handleRawText() only removed comments inside
a single rawmarkup element. If we manually add <!-- and -->, it'll be in 3+
markupelements.
> javascript with a less than character ("<") fails to execute when added
> through a header contribution in ajax response
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: WICKET-3420
> URL: https://issues.apache.org/jira/browse/WICKET-3420
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.4.15
> Environment: Validated this bug on my dev environment: Windows 7 64
> bit using Firefox 4.0beta10 and Chrome 8.
> Reporter: Randy Schnedler
> Assignee: Martin Grigorov
> Priority: Minor
> Labels: ajax, header-contribution, javascript, wicket-ajax.js
> Attachments: myproject.rar
>
>
> This is adapted from a wicket users post I made (links are to the same thread
> in two archive systems):
> http://markmail.org/search/?q=wicket%20users%20wicket-ajax.js#query:wicket%20users%20wicket-ajax.js+page:1+mid:rfts3ar3upffhbbt+state:results
> http://mail-archives.apache.org/mod_mbox/wicket-users/201102.mbox/%3CAANLkTi=ekmta0rna+gyje-cqwmkcxrlsjp+z8jwv-...@mail.gmail.com%3E
> The problem: I have a panel with this:
> <wicket:head>
> <script>
> if (someVariable < 0) {
> someVariable = 0;
> }
> </script>
> </wicket:head>
> This script fails to execute when the panel is loaded by ajax. If I replace
> the less than character "<" with equals "==", then it executes (but of
> course, this is not what I need).
> I tested this in Firefox 4.0b10 and Chrome 8.
> After some debugging, it seems to me that this needs to be corrected in
> wicket-ajax.js. The header contribution is sent to the browser inside of a
> CDATA section so the "<" character arrives to javascript intact. However, in
> parsing the script tag, the "<" seems to signal the beginning of an HTML tag
> that then is considered malformed.
> Possible workarounds for apps:
> - Invert the logic so a greater-than is used. In my example, this would be:
> "if (0 > someVariable) {"
> - Put the code into a separate JS file (the downside is it requires another
> network hop from the browser)
> - Embed the script in <wicket:panel> rather than <wicket:head> (the
> disadvantage is the script will be re-sent with the panel content when the
> panel is re-used on the same page)
--
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
