[Bug 13319] New: Script errors should provide column position

http://www.w3.org/Bugs/Public/show_bug.cgi?id=13319

           Summary: Script errors should provide column position
           Product: HTML WG
           Version: unspecified
          Platform: All
               URL: http://www.w3.org/TR/html5/webappapis.html#runtime-scr
                    ipt-errors
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P3
         Component: HTML5 spec (editor: Ian Hickson)
        AssignedTo: ian@hixie.ch
        ReportedBy: adrianba@microsoft.com
         QAContact: public-html-bugzilla@w3.org
                CC: mike@w3.org, public-html-wg-issue-tracking@w3.org,
                    public-html@w3.org


The window.onerror function needs a 4th parameter for column number. For sites
that report exceptions to a server for post mortem analysis, column offsets
enable developers to locate the source location in JavaScript files that have
been minified or in other cases where many statements are on a single line. It
would also be helpful if the spec called out that the line and column offsets
should be 1 based so that implementations can be consistent. 

Proposed updates:
The function must be invoked with four arguments. The four arguments passed to
the function are all DOMStrings; the first must give the message that the UA is
considering reporting, the second must give the absolute URL of the resource in
which the error occurred, the third must give the one based line number in that
resource on which the error occurred and the fourth must give the one based
column offset for the start of the statement which the error occurred.

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Received on Thursday, 21 July 2011 17:40:08 UTC