UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36

Example URL:
https://spellup.withgoogle.com/

Steps to reproduce the problem:
1. Go to https://spellup.withgoogle.com/
2. Wait for the game to load 100%.
3. When "I need to use your microphone" appears, allow it.
4. Website asks to make some noise to test microphone, so make some noise.
5. Play game.

What is the expected behavior?
Can get pass step 3.

What went wrong?
In step 3, even after allowing microphone access, still stuck at the same screen.

Did this work before? Yes Chrome 56

Is it a problem with Flash or HTML5? HTML5

Does this work in other browsers? N/A

Chrome version: 60.0.3112.90  Channel: stable
OS Version: 10.0
Flash Version: 

Contents of chrome://gpu: 

Checking developer console, you will see an error webkitAudioContext not available (removed since Chrome 57 [0]).

Workaround is in step 1, while waiting for loading, type "webkitAudioContext = AudioContext" in developer console. You will be able to get pass till step 5 and play game. However, speech synthesis is not working while speech recognition and sound effects are working.

Google Spell Up is a Chrome experiment created in 2014. It is very popular among teachers and students. If Google no longer wants to maintain it, please consider open-sourcing it on Github.

[0]: https://developers.google.com/web/updates/2017/02/chrome-57-deprecations