Error when opening login page: Cannot access contents of url

[siphomateke]

Version
v1.7.1

Describe the bug
When the extension opens a login tab the following error occasionally occurs:

ExecuteScriptError: Failed to execute script: "Cannot access contents of url

"data:text/html;charset=utf8...[REDACTED]"

Extension manifest must request permission to access this host."

It's worth noting that the client that was being logged in may still successfully login, despite the error.

To Reproduce
Unknown

Expected behavior
The login page should open successfully without any errors.

Additional context
It seems the extension is not correctly detecting when the page has finished loading.