open sounds config will show an error in console

[lasiaz]

Expected Behavior

no error

Actual Behavior

in console show an error, Uncaught (in promise) DOMException: play() failed because the user didn't interact with the document first.

Steps to Reproduce

1. change blocks config in scratch-gui, {sounds:true}
2. open scratch-gui/index.html

Operating System and Browser

Mac OS 10.13.6 chrome 70.0.3538.102

[epicfaace]

This is caused by a Blockly problem, google/blockly#1902

[epicfaace]

The fix was added in Blockly (google/blockly#2162) - so it should be fixed once the latest version is merged in.

[mfrtrifork]

Should be fixed by this PR: #1942