Chrome & webextension-polyfill

[jmfayard]

Hello Kirill,

I tried and failed to port the extension to Chrome in this commit

jmfayard/webextension-search-kotlin-docs@0bc78b0

Things I have done:

• Read https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Porting_a_Google_Chrome_extension
• Read https://github.com/mozilla/webextension-polyfill
• Added src/main/resources/browser-polyfill.js to the background scripts
• Noticed in https://developer.chrome.com/extensions/declare_permissions that the permission was called contextMenus instead of menus so added it to the manifest.
• ./gradlew runDceKotlinJs --continous
• Opened chrome://extensions/ in Chrome Canary.
  
• I enabled the developer mode
• Load unpacked, tried to use the extension, opened Errors

There I see Uncaught TypeError: Cannot read property 'create' of undefined
The polyfill from browser.menus to browser.contextMenus is not working