354159 - errors not displayed in XMLHttpRequest callback functions

Status: RESOLVED INVALID

(Toolkit Graveyard :: Error Console, defect)

Description

[Michael Newton]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1b2) Gecko/20060913 BonEcho/2.0b2
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1b2) Gecko/20060913 BonEcho/2.0b2

Testcase will be attached momentarily.  I'm using the Yahoo UI library to perform an XMLHttpRequest call.  When completed successfully, a callback function is invoked.  No errors are reported in the console for this callback function.  Tested in 1.5.07 and the current nightly of 2.0

Reproducible: Always

Steps to Reproduce:
1. Load the attached testcase
2. Click the indicated area
3. Look at the error console

Actual Results:  
No errors reported

Expected Results:  
Should be several fatal errors.

Comment 1

[Michael Newton]

Attachment: testcase

Comment 2

[Erik Fabert]

This happens because Yahoo's libraries uses try..catch to intercept all errors in your callback function. Not a Firefox bug.