AWS Lambda Edit Code Inline shows "Loading your function..." continuously

I was facing the same issue on Chrome 63. What worked for me:

• Right Click on the "Loading your function..."

• Click on Reload Frame.

It should load the IDE.

What browser do you use? Chrome 62 and Firefox 57 fail at inline editing lambdas and both throw DOMExceptions, but Safari 11 seems to work. Try Safari(or some other browser) for editing while waiting for Amazon to fix this.