Lately I see that the LanguageTool addon for Google drive is failing to connect
drive.google.com refused to connect.
@dnaber any ideas of what is going on?
Could you post a screenshot of the error you get?
I can’t reproduce that, but I’ll ask the developer. As a quick workaround, you might want to try our browser add-on (LanguageTool - Online Grammar, Style & Spell Checker), which also works with Google Docs now.
@dnaber I’m using the browser plugin, but I like the docs addon more for a full check ! 
Also I’ve checked the Console after loading the docs addon and it says:
Refused to display in a frame because it set ‘X-Frame-Options’ to ‘sameorigin’.
Also I’ve tryed to test it in Firefox and it works fine.
So your original issue was in Chrome? Which version of Chrome was that?
Chrome has been warning about an upcoming update to its security policies, maybe it has finally landed.
Haven’t found the issue ?
No, your report was the only one so far, and we can’t reproduce it. It might be specific to your setup. Maybe a different add-on, security software or something like that.
I think I’ve found the issue. I has something to do with accounts.
I did uninstall Chrome and reinstall it to see what is going on. Disabled all extensions but nothing it did not work.
But suddenly I discovered a weird behaviour I explain:
I have 3 Google Accounts
Account A: main
Account B
Account C
With a fresh install of Google Chrome in connect and sync Account A
I go to the Google Doc and start the LanguageTool addon: It works right
Then I switch to Account B: same procedure: It works right
Then I go to Account C: and it fails
Note that Account C is the owner of the document.
I’ve tested creating a document with account B and sharing with A and C: Same issue: C has the same error. So is something related to Account C, nothing to do with Chrome or with the other Addons…
Now I’ve uninstalled the LanguageTool from Account C and tried to reinstall… but it simply don’t reinstall. It seems like the installation is binded to Account A exclusively.
Extra testing (I’m writting this as I test):
I’ve logged in with a 4th account, lets say Account D, and it happens the same than with Account.
What has Account B different than C and D? It’s a Google Suite account.
Also I’ve tried opening with Account C and D the extension Code Blocks and it also shows the same error as in Language Tool… It seems that a new Google Chrome policy is blocking other accounts?
Final test:
I’ve tried in a second computer with two Accounts E and F and happens the same
I log in with Account E, install LanguageTool everything fine
Then I log in with Account F in the same document, install LanguageTool and issues start to arise.
So the problem is related with a multiple account issue.
@dnaber additional info:
I’ve tried this also with Firefox and happens the same:
The key is to login in a document with an Google account that is not the default one:
