390099 - Viewing pages with "No style" still downloads CSS files

Status: RESOLVED INVALID

(Core :: CSS Parsing and Computation, defect)

Description

[nrlz]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.0.12) Gecko/20070508 Firefox/1.5.0.12
Build Identifier: 

Last week I was using Firefox on an extremely slow network (in another country). I disabled Javascript so that it wouldn't download JS files so that I could save some bandwidth to improve speed. I tried to disable CSS (View -> Page Style -> No Style) but I still found it slow. (As you know, Firefox blocks the rendering queue when it downloads CSS files). I used a network sniffer and found that that Firefox still downloads CSS files even when styles are disabled.

I think Firefox (or Gecko) should not download CSS files when "No Style" is selected. This would make rendering HTML much faster for people who want that on slow networks.

Reproducible: Always

Steps to Reproduce:
1. See testcase

Comment 1

[nrlz]

Attachment: test loading slow CSS file

Comment 2

[Adam Guthrie]

I'm really not sure how you could test this, since "No style" isn't persisted across page loads. You're saying the stylesheet is RELOADED when you select the "No style" menu item?

Comment 3

[nrlz]

(In reply to comment #2)
> I'm really not sure how you could test this, since "No style" isn't persisted
> across page loads. You're saying the stylesheet is RELOADED when you select the
> "No style" menu item?
> 

"No Style" is persisted for me. I go to Google, turn on "No Style", search and click on search results and "No Style" is still on.

Comment 4

[Boris Zbarsky [:bzbarsky]]

It's persisted on a per-site basis.

But the problem is that it's just switching to a particular stylesheet set.  It doesn't disable loading stylesheets (including alternate ones), nor is it meant to.  All it does is select the default stylesheet set, by design.

If you really want to disable stylesheet loading, you can use an extension to do so, of course.

David, this looks invalid to me, but it's your call.

Comment 5

[Rayann Tedds]

Hiya,

I am currently looking for bugs to fix as part of my Open Source Development module at Coventry University and I am interested in developing this bug.

Please could you assign this task to me and give me more information.

This is my first bug fix and any help would be appreciated.

Thank you.

Comment 6

[Boris Zbarsky [:bzbarsky]]

Invalid per comment 4.

Rayann, I know this is horrible lag, but trying to fix this bug would not have worked well anyway given that...