276705 - XMLHttpRequest throws exception if header requested with getResponseHeader doesn't exist

Status: RESOLVED FIXED

(Core :: XML, defect)

Description

[Christian Eyrich]

According to nsIXMLHttpRequest.idl and other descriptions, the return value is
"A string containing the text of the header specified. NULL if the response has
not yet been received or the header does not exist in the response."

But in reality (trunk 20041231) Mozilla throws an exception if the header is not
available: 0x80040111 NS_ERROR_NOT_AVAILABLE.
Is the bug in the code or in the documentation? I'd prefer getting null.

Comment 1

[Boris Zbarsky [:bzbarsky]]

Attachment: Make the code follow the api

Comment 2

[Doron Rosenberg (IBM)]

Comment on attachment 172642 [details] [diff] [review]
Make the code follow the api

reporter: did this regress or has it always been like that?

r=doron

Comment 3

[Christian Eyrich]

(In reply to comment #2)
> reporter: did this regress or has it always been like that?

I just started using this interface, so I can't tell.

Comment 4

[Johnny Stenback (:jst)]

Comment on attachment 172642 [details] [diff] [review]
Make the code follow the api

sr=jst

Comment 5

[Boris Zbarsky [:bzbarsky]]

Fixed.  Note that I changed to SetIsVoid(PR_TRUE), since this is not an
nsAString... I don't know how this managed to compile.  :(

Comment 6

[Peter Van der Beken [:peterv]]

*** Bug 298550 has been marked as a duplicate of this bug. ***