484383 - src="" in <noscript> tag requested when Javascript is enabled.

Status: RESOLVED INVALID

(Core :: DOM: HTML Parser, defect)

Description

[James Kerr]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7 (.NET CLR 3.5.30729)

src URL's inside a <noscript> tag are currently being requested when Javascript is enabled...

Surely the correct action (as both IE and Opera take) should be to ignore everything inside this tag when Javascript is enabled...

Reproducible: Always

Steps to Reproduce:
<noscript><img src="http://file.at/this/location.png"/></noscript>
Actual Results:  
request sent to http://file.at/this/location.png, and resource loaded if successful.

Expected Results:  
ignore referenced file.

Comment 1

[Blake Kaplan (:mrbkap) (inactive)]

Indeed. The patch in bug 484121 will make this a lot easier to fix.

Comment 2

[James Kerr]

It seems this isn't a bug after-all...

I should mention that it only happens when using the XML parser (the HTML parser deals with it as expected), and from reading the (X)HTML5 spec., it looks like the XML parser is in fact showing the correct behaviour :

(from) http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#the-noscript-element

..."All these contortions are required because, for historical reasons, the noscript element is handled differently by the HTML parser based on whether scripting was enabled or not when the parser was invoked. The element is not allowed in XML, because ***in XML the parser is not affected by such state, and thus the element would not have the desired effect.***"