Chrome extension Refused to create a worker from blob - google-chrome

Question

I'm trying to develop a Chrome extension that provides translation of meeting audio using Microsoft speech translation api. So far I've been able to integrate the api into my content script and trigger the translation process. But I'm getting the following errors right after
Refused to
create a worker from
'blob:https://meet.google.com/64dd2a91-68d8-4dad-a670-b2f60802b7b0'
because it violates the following Content Security Policy directive:
"worker-src 'self'".
Refused to create a worker from
'blob:https://meet.google.com/64dd2a91-68d8-4dad-a670-b2f60802b7b0'
because it violates the following Content Security Policy directive:
"script-src 'nonce-2I2d8Ck8M1aHt/5Ka0zUQQ' 'unsafe-eval' 'self'
https://apis.google.com https://ssl.gstatic.com https://www.google.com
https://www.gstatic.com https://www.google-analytics.com
https://youtube.googleapis.com https://youtube.com https://s.ytimg.com
https://www.youtube.googleapis.com". Note that 'worker-src' was not
explicitly set, so 'script-src' is used as a fallback.
Following is my manifest file..
{
"name" : "Meeting Translator",
"description" : "Real time audio to text translation",
"version" : "0.0.1",
"manifest_version" : 2,
"browser_action" : {
"default_popup" : "popup.html",
"default_icon": {
...
}
},
"icons" : {
...
},
"background" : {
"scripts" : ["background.js"],
"persistent" : false
},
"content_scripts" : [
{
"matches" : ["https://meet.google.com/*","http://meet.google.com/*"],
"js" : [
"js/microsoft.cognitiveservices.speech.sdk.bundle.js",
"js/socket.io.min.js",
"js/content.js"
]
}
],
"permissions" : ["tabs","contentSettings", "storage", "pageCapture"],
"content_security_policy" : "script-src 'self'; script-src-elem 'self' data: blob:; worker-src 'self' data: blob:; object-src 'self'"
}
This is my first try in extension building. Any help is much appreciated.
ps: if anyone can please explain or refer easy material to understand CSP better.