Not able to make it work in rails web app

[atchyut-re]

I was trying to implement the speak functionality in the Rails webapp. But I was stuck with no response form my app. Then I opened my console and found an error `speakWorker.self-33f6e6e150af2ba6ed025be7af717e8798de3e72da62eb409de0f0155a6159d8.js:1

Uncaught ReferenceError: importScripts is not defined(anonymous function) @ speakWorker.self-33f6e6e150af2ba6ed025be7af717e8798de3e72da62eb409de0f0155a6159d8.js:1
annyang.min.self-f30b0a5….js?body=1:6 Commands successfully loaded: 1`

Can someone please tell me how can I get out of this issue.