Chrome 56 not functional because of synchronous XMLHttpRequest

[TrevorBender]

Chrome Version 56.0.2924.87 (64-bit)

Steps to recreate:

• Click WebGL-Inspector.

Expected results:

• WebGL draws continue working and WebGL UI shows up.

Actual Results:

• No WebGL draws work and no WebGL UI. There is a warning in the console.

Console:

Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
insertScript @ contentscript.js:74
(anonymous) @ contentscript.js:100