Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.javascript > #18221 > unrolled thread

Firefox update caused a syntax error in a script

Back to article view | Back to comp.lang.javascript

Contents

  Firefox update caused a syntax error in a script Dave Farrance <DaveFarrance@OMiTTHiSyahooANDTHiS.co.uk> - 2013-01-23 14:01 +0000
    Re: Firefox update caused a syntax error in a script Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-01-23 16:24 +0100
      Re: Firefox update caused a syntax error in a script Dave Farrance <DaveFarrance@OMiTTHiSyahooANDTHiS.co.uk> - 2013-01-23 17:28 +0000
        Re: Firefox update caused a syntax error in a script Danny <dann90038@gmail.com> - 2013-01-23 12:33 -0800

#18221 — Firefox update caused a syntax error in a script

The "Greased Webcomic Manager" is a "greasemonkey" script that broke with
the update of Firefox from 16.0.2 to 17.0.  Firefox's "error console" now
shows a syntax error on line 1061.  i.e.:

   TN.gwm.css = <><![CDATA[

which is just past the halfway mark down this script file:

   http://userscripts.org/scripts/review/74760

That's beyond my limited understanding of Javascript, so could anybody
tell me why the syntax is bad?  I'm asking because a reviewer noted that
the script had broken seven weeks back but the developer hasn't appeared
yet, so I'm hoping that a simple patch will fix it.

[toc] | [next] | [standalone]

#18223

Dave Farrance wrote:

> The "Greased Webcomic Manager" is a "greasemonkey" script that broke with
> the update of Firefox from 16.0.2 to 17.0.  Firefox's "error console" now
> shows a syntax error on line 1061.  i.e.:
> 
>    TN.gwm.css = <><![CDATA[
> 
> which is just past the halfway mark down this script file:
> 
>    http://userscripts.org/scripts/review/74760
> 
> That's beyond my limited understanding of Javascript,

That much is obvious, because there is no “Javascript”.

<http://PointedEars.de/es-matrix>

> so could anybody tell me why the syntax is bad?  I'm asking because a
> reviewer noted that the script had broken seven weeks back but the
> developer hasn't appeared yet, so I'm hoping that a simple patch will fix
> it.

The right-hand side (RHS) is part of ECMAScript for XML (E4X, ECMA-357), 
which allows you to use XML markup verbatim in ECMAScript-based scripts, 
resulting in an XML object (XML instance).  The first line of the RHS is the 
start-tag of an anonymous element followed by the left-hand side delimiter 
of a CDATA section.

<http://www.w3.org/TR/2008/REC-xml-20081126/#sec-cdata-sect>

Unfortunately, E4X never had cross-implementation (and thus cross-browser) 
support, and support has been disabled in (Mozilla) JavaScript for non-
privileged code (such as GreaseMonkey scripts) in Firefox 17.  The feature 
is going to be removed from the codebase in Firefox 20:

<https://developer.mozilla.org/en-US/docs/E4X>

Your From header field value is invalid; please fix.

-- 
PointedEars

Twitter: @PointedEars2
Please do not Cc: me. / Bitte keine Kopien per E-Mail.

[toc] | [prev] | [next] | [standalone]

#18224

Thomas 'PointedEars' Lahn <PointedEars@web.de> wrote:

>Unfortunately, E4X never had cross-implementation (and thus cross-browser) 
>support, and support has been disabled in (Mozilla) JavaScript for non-
>privileged code (such as GreaseMonkey scripts) in Firefox 17.  The feature 
>is going to be removed from the codebase in Firefox 20:


Thanks.  Googling around that told me how to re-enable it.  In
about:config, set javascript.options.xml.content to true.  I hope that the
developer finds a fix before Firefox 20.

[toc] | [prev] | [next] | [standalone]

#18225

to Dave Farrance

hmmm, I have several extensions installed in Firefox, I'm aware extensions have some min/max version of the app they work for, so to avoid the hassle you have, I simply disable automatic updates :) , I do my own updates manually, when I know my extensions work there.

[toc] | [prev] | [standalone]

Back to top | Article view | comp.lang.javascript

csiph-web