It will insert some
<iframe> in DOM.
We can see logs in Console:
Navigated to https://accounts.google.com/o/oauth2/iframe Navigated to https://accounts.google.com/o/oauth2/postmessageRelay
In Chrome 64/65, this will cause a console clearing.
Someone had report this issue in Google Product Forums
And a bug had been created in Chroumium Issue List
You can access a website, open a console, write something like
Then open the “Elements” tab in Devtools, and add
<iframe src="https://accounts.google.com/o/oauth2/iframe"></iframe> to DOM.
After you click Ctrl+Enter/Command+Enter, you will see the console has been cleared.