Find the source of an XMLHttpRequest using Chrome/Firefox dev tools
debugging, google-chrome-devtools, javascript, xmlhttprequest
Solution
It turns out - yes, there is. That "XHR Breakpoints" option on the side which I had always ignored:
It works perfectly.
Firefox has an identical feature:
Problem
I'm trying to debug a web application not written by me. There is a failing XMLHttpRequest being made: ``` XMLHttpRequest cannot load ... No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin '...' is therefore not allowed access. ``` Is there a way, preferably using Chrome developer tools, to locate the source of this call?