xhr.onreadystatechange = function()

in stackdriver-errors.js [177:196]

• 17 lines of code
• 6 McCabe index (conditional complexity)

    xhr.onreadystatechange = function() {
      if (xhr.readyState === 4) {
        var code = xhr.status;
        if (code >= 200 && code < 300) {
          resolve({message: payload.message});
        } else if (code === 429) {
          // HTTP 429 responses are returned by Stackdriver when API quota
          // is exceeded. We should not try to reject these as unhandled errors
          // or we may cause an infinite loop with 'reportUncaughtExceptions'.
          reject(
            {
              message: 'quota or rate limiting error on stackdriver report',
              name: 'Http429FakeError',
            });
        } else {
          var condition = code ? code + ' http response'  : 'network error';
          reject(new Error(condition + ' on stackdriver report'));
        }
      }
    };