There are some firefox plugins cause validation error on file upload.

case -----------------
1. Install xampp 1.6.3a into WinXP sp3 + IE6.
2. create db "test" with phpMyAdmin.
3. Install drupal 6.6.
4. turn on "upload" module, and verify settings.
5. on /node/add/story, attach file "example.jpg" ... failed.
Error dialog appeared.
> An Http error 0 occured
> /upload/js

what I did -----------------
I use Firefox usually, then try with IE ... It's succeeded.

Then, I try with Firefox and Fiddler.
Server returns succeeded result. But error dialog appeared.

Error is caused by firefox.
I remove all Firefox plugin. and retry ... succeeded.

There are some plugins cause error.

...

I found. "Linkificatin 1.3.5" is cause of the error.

Comments

fusianasan’s picture

This post is only report.
I don't know which forum is proper to post this report. sorry.

mtcs’s picture

Linkification (1.3.5) causes "Http error 0" (the file is uploaded successfully).

Konamito’s picture

Currency Converter 1.3 also causes the same error.

jacobson’s picture

The SmarterFox Add-In also seems to cause this problem.

husztisanyi’s picture

Linkification 1.3.6 causes the same error!

gtaylor’s picture

When I upgraded skype, they also included the Browser Highlighter w/o telling me. Nice right?? I think the intention of that Plugin is to have it inject html where there are phone numbers on a web page and enable skype for that data. I love skype, but not that kind of behavior!

Anyway, I can confirm version 1.0.14907 of Browser Highlighter causes this problem. It also adds junk to our hml in FCKEditor. BAD plugin! I disabled it. Now I can upload just fine.

Omar Alahmed’s picture

Yes i think it's Browser Highlighter plugin issue because i have skype on my pc and i got this error on firefox, when I tested the file attachments on another pc that hasn't skype; it worked properly.

Thanks,

kay_v’s picture

just found this on a Skype forum thread and thought I'd share.

<meta name="SKYPE_TOOLBAR" content="SKYPE_TOOLBAR_PARSER_COMPATIBLE" />

should this type of tag become standard on Drupal? anyone aware of other overrides of problematic firefox plugins? any best practices on implementing, or just best to put in templates?

as a side note, sad to say I'm considering no longer using Firefox as my primary browser. Am trying Chrome (which is not as nice for many things) - just too many issues with firefox the way I used it, even without any plugins beyond firebug....

other drupal developers and themers have solutions/best practices to recommend regarding plugins?

ownsourcing.com - Drupal training

3dloco’s picture

Thanks! These add-ons are causing an HTTP 0 error for me too when I try to upload files using filefield. Disabling the skype and highlighter addons and restarting firefox resolves my issue.

However, a lot of people are using skype with these addons since they get automatically installed when one installs skype. Has anyone found a way around this without disabling the skype and highlighter addons?

@kay_v: Thanks for your post regarding the skype meta tag. I did try this option out but it did not work for me.
I inserted the skype meta tag at the top of every page (place it on my page.tpl just below the title tag). However, I still get the HTTP 0 error and can't upload...

KH

3dloco’s picture

I guess we don't have to worry about the highlighter for long as it will no longer be bundled with Skype (4.2 beta for Windows).

http://forum.skype.com/index.php?showtopic=474431&st=20&p=2293671&#entry...

process91’s picture

The SmoothScroll extension for Google Chrome also causes an HTTP 0 error on image uploads. It must be adding something to the DOM on every page request. I have found that the Chromium Wheel Smooth Scroller works (although the extension itself does not seem as good). Hopefully this will be integrated into Google Chrome soon and it won't be an issue.

Also, a good way to test if the extension is causing a problem is to just operate in incognito mode, which (by default) does not load any extensions.

Elijah Lynn’s picture

@process91 You da man! This was driving me crazy, I just spent an hour reading this thread and there was a link to this thread and happend to skim your post. BOOM no Ahah error anymore! Still is a pain and needs to be fixed but at least I know now that only a small percentage of our Chrome users could have this problem. Probably plenty of other extensions too!

Anyways, thanks!

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The Future is Open!

effulgentsia’s picture

#1009382: Several popular browser extensions corrupt AJAX responses, causing errors. Please test that patch out with the various add-ons that you've been seeing problems on, and report your successes or failures on that issue.

cumboandrea’s picture

Hi,
ERROR:
An HTTP error 0 occurred.
/filefield/ahah/showcase_with_image/field_image/0

RESOLUTION:
I solved this error, whit the elimination the extension for Firefox: Inline Translations 0.8.
I think it is absurd, but it si so! :)

kidd1126’s picture

what I do is just romove firefox plugin "drupal for firebug"
It's worked for me