Incompatibility with Google Chrome Beta

[martgil]

Description:
The FlowCrypt browser extension is not compatible with Google Chrome Beta version and returns the following error messages upon trying to set it up for the first time:

Error: You do not have a background page.
    at <async> isBackgroundPage (/extension/js/common/browser/env.ts:42:4)
    at <async> sendAwait (/extension/js/common/browser/browser-msg.ts:627:4)

### Catch.reportErr calling stack ###
#     at Catch.formatExceptionForReport (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/js/common/platform/catch.js:242:100)
#     at Catch.onErrorInternalHandler (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/js/common/platform/catch.js:81:33)
#     at reportErr (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/js/common/platform/catch.js:97:22)
# 
# url: chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/chrome/elements/oauth2.htm~censored:code
# 
######################

onErrorInternalHandler @ catch.js:64Understand this error
catch.js:68 You do not have a background page.
Error: You do not have a background page.
    at <async> isBackgroundPage (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/extension/js/common/browser/env.ts:42:4)
    at <async> sendAwait (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/extension/js/common/browser/browser-msg.ts:627:4)
onErrorInternalHandler @ catch.js:68Understand this error
external-service.js:114 Error: You do not have a background page.
    at <async> isBackgroundPage (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/extension/js/common/browser/env.ts:42:4)
    at <async> sendAwait (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/extension/js/common/browser/browser-msg.ts:627:4)
    at <async> retryOnBgNotReadyErr (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/extension/js/common/browser/browser-msg.ts:398:4)
    at <async> get (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/extension/js/common/platform/store/in-memory-store.ts:14:4)
    at <async> getUntilAvailable (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/extension/js/common/platform/store/in-memory-store.ts:18:4)
    at <async> getAuthHeaderDependsOnType (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/extension/js/common/api/authentication/configured-idp-oauth.ts:226:4)
    at <async> authHdr (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/extension/js/common/api/authentication/configured-idp-oauth.ts:28:26)
    at <async> request (chrome-extension://bnjglocicdkmhmoohhfkfkbbkejdhdgc/extension/js/common/api/account-servers/external-service.ts:181:20)
reportException @ external-service.js:114Understand this error
external-service.js:116 FlowCrypt ISSUE: Please report errors above to human@flowcrypt.com. We fix errors VERY promptly.

Screenshot:

[martgil]

Reference: https://mail.google.com/mail/u/human@flowcrypt.com/#inbox/FMfcgzQdzwHKdMSnxQVdgjWpLCksfGSG