Chrome truncates error messages and adds “” in [removed]

Question

We use window.onerror to catch unhandled exceptions (to log them for the dev team, and display a friendly user alert). Recently we noticed that in Google Chrome, the error messa

Answer 1

I found a solution that works well.

Chrome implements the new HTML standard, in which 2 new parameters have been added to the onerror handler, namely: the colNumber, and the error object (including stack trace).

See:

• https://mikewest.org/2013/08/debugging-runtime-errors-with-window-onerror
• HTML Living Standard

The full error message can be accessed through error.message as per my code sample below. This is a duplicate of the 1st parameter message, it seems like Chrome has decided to truncate message. Not sure why they had to break something that was working... :-(

IE and FireFox (as of my current versions: 11.0.9600 & 26.0) are not yet implementing the new 5-parameter standard, so the code makes allowance for that.

Hope this helps someone!

Code sample to return full error message:

    


    
Hello World