mutt failure

gistfile1.txt

ERROR | Test Failure | {
  "exception": {
    "stack": [
      "waitFor@resource://mozmill/stdlib/utils.js:279", 
      "@resource://mozmill/driver/controller.js:437", 
      "@resource://mozmill/modules/frame.js -> file:///Users/robertsilverberg/Documents/gitRepos/mozmill/mutt/mutt/tests/js/frame/httpd/testHTTPd2.js:35", 
      "@resource://mozmill/modules/frame.js:634", 
      "@resource://mozmill/modules/frame.js:704", 
      "@resource://mozmill/modules/frame.js:602", 
      "@resource://mozmill/modules/frame.js:749", 
      "@resource://jsbridge/modules/Bridge.jsm:140", 
      "@resource://jsbridge/modules/Bridge.jsm:147", 
      "@resource://jsbridge/modules/Server.jsm:33", 
      ""
    ], 
    "message": "waitFor() callback has to return a boolean instead of 'undefined'", 
    "fileName": "resource://mozmill/stdlib/utils.js", 
    "name": "TypeError", 
    "lineNumber": 279
  }
}
TEST-UNEXPECTED-FAIL | js/frame/httpd/testHTTPd2.js | testHttpFailure