I was using the Chrome API but have begun switching to error-stack-parser so that I can get similar more consistent results across environments. The issue I am finding on Chromium, which didn't happen with their API, is:

StackFrame
columnNumber: 19
fileName: "http://fiddle.jshell.net/_display/"
functionName: "new"
lineNumber: 149
source: " at new CustomError (http://fiddle.jshell.net/_display/:149:19)"

Is this something that can be fixed?