263120 - nsDownloader fails for small images when second param to init is null

Status: RESOLVED WORKSFORME

(Core :: Networking, defect, P5)

Description

[Jesse Ruderman]

I'm writing an extension that sends an image to an external program.  The
extension calls nsDownloader::init(observer, null).  When the image is large
enough that it has its own file in the cache, this works, and the observer
callback has a file as a parameter.  When the image is small, the observer
callback gets result == 0x80040111 (NS_ERROR_NOT_AVAILABLE).

I think the failure occurs for small images because they are cached differently
(in memory or in block cache files rather than normal files in the cache).

Comment 1

[Jesse Ruderman]

Attachment: testcase (requires chrome privs)

This testcase requires chrome privs.  One way to test it is to install
http://ted.mielczarek.org/code/mozilla/extensiondev/ and paste this testcase
into a chrome Real-Time HTML Editor.

Comment 2

[Christian :Biesinger (don't email me, ping me on IRC)]

so is it that init throws an exception, like the summary says, or that init
works and the observer is called, with a failure status, like comment 0 says?

Comment 3

[Jesse Ruderman]

Comment 0 was correct; clarified summary.

Comment 4

[Vincent Lequertier]

Hello, can I work on this ?

Comment 5

[Firefox Bug Husbandry Bot]

Bulk change to priority: https://bugzilla.mozilla.org/show_bug.cgi?id=1399258

Comment 6

[Sonakshi Saxena]

Hey @valentin
I was thinking to take this up!
Will it be possible for me to work on this, provided I have MacOS rather than Windows XP?
If yes, could please guide me more?

Thankyou! :)

Comment 7

[Valentin Gosu [:valentin] (he/him)]

This is a very old bug, and seems to have been fixed at some point.
Didn't check when. In any case, nothing more needs to be done here.