Google Chrome	65.0.3287.0 (Official Build) canary (64-bit)
Platform	10205.0.0 (Official Build) canary-channel eve
Firmware Version	Google_Eve.9584.107.0

What steps will reproduce the problem?
(1) Go to a website
(2) Open DevTools, go to "Audits" panel
(3) Click "Perform an audit..." button

What is the expected result?
Audit should start

What happens instead?
UI hangs forever.


Here's copied below the log from the devtools console (not the console of the website):

inspector.js:8438 Main._createAppUI: 25.75390625ms
inspector.js:8438 Main._showAppUI: 50.68701171875ms
inspector.js:8438 Main._initializeTarget: 16.344970703125ms
audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:22 Empty response arrived for script 'chrome-devtools://devtools/bundled/audits2_worker/audits2_worker_module.js'
evaluateScript @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:22
scriptSourceLoaded @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:21
Promise.then (async)
_loadScriptsPromise @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:20
_loadScripts @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:92
Promise.then (async)
_loadPromise @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:87
instance @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:102
_dispatchMessage @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:140
_dispatchMessageWrapped @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:138
_onMessage @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:153
VM23:1 Uncaught (in promise) ReferenceError: Audits2Service is not defined
    at eval (eval at _createInstance (audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:104), <anonymous>:1:1)
    at eval (<anonymous>)
    at Runtime.Extension._createInstance (audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:104)
(anonymous) @ VM23:1
_createInstance @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:104
Promise.then (async)
_dispatchMessage @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:140
_dispatchMessageWrapped @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:138
_onMessage @ audits2_worker.js?remoteBase=https://chrome-devtools-frontend.appspot.com/serve_file/@/:153