I wonder if there's any cross-browser libraries that do this kind of thing

errorWrapper.js

error = {
  message: "Expected true to be false.",
  stack: "Error: Expected true to be false.\n   at new jasmine.ExpectationResult (http://0.0.0.0:3001/relative/assets/jasmine/1.3.1.js?body=1:114:32)\n    at null.toBe (http://0.0.0.0:3001/relative/assets/jasmine/1.3.1.js?body=1:1237:29)\n    at null.<anonymous> (http://0.0.0.0:3001/relative/assets/integration/integration_spec.js?body=1:11:27)\n    at jasmine.Block.execute (http://0.0.0.0:3001/relative/assets/jasmine/1.3.1.js?body=1:1066:17)\n    at jasmine.Queue.next_ (http://0.0.0.0:3001/relative/assets/jasmine/1.3.1.js?body=1:2098:31)\n    at jasmine.Queue.start (http://0.0.0.0:3001/relative/assets/jasmine/1.3.1.js?body=1:2051:8)\n    at jasmine.Spec.execute (http://0.0.0.0:3001/relative/assets/jasmine/1.3.1.js?body=1:2378:14)\n    at jasmine.Queue.next_ (http://0.0.0.0:3001/relative/assets/jasmine/1.3.1.js?body=1:2098:31)\n    at jasmine.Queue.start (http://0.0.0.0:3001/relative/assets/jasmine/1.3.1.js?body=1:2051:8)\n    at jasmine.Suite.execute (http://0.0.0.0:3001/relative/assets/jasmine/1.3.1.js?body=1:2523:14)\n\n"
}

wrapped = new ErrorWrapper(error)
wrapped.errorType
//=> "Error"
wrapped.message
//=> "Expected true to be false."
wrapped.stack[0]
//=>
{
  method: "new jasmine.ExpectationResult", 
  url: {
    toString: "http://0.0.0.0:3001/relative/assets/jasmine/1.3.1.js?body=1",
    protocol: "http",
    host: "0.0.0.0:3000",
    path: "/relative/assets/jasmine/1.3.1.js",
    query: {"body": "1"}
  },
  lineNumber: 114,
  character: 32
}