Line break in admin setting's email body causes loading issues on main page

[MarkusStoffer]

When entering a text for the Magic Link Email Body (in admin settings -> setup -> app settings -> auth), adding any line breaks will cause a console error that prevents loading any app settings on the landing page.

The error is in this code:

<script>window.APP_CONFIG = JSON.parse('{"translations":{"en":{"share-hashtag":"","contact-email":"","company-name":"","app-tagline":"","app-name":"","app-description":" ."}},"theme":{"nametag-text-color":"#0008ff"},"images":{"logo":"","home_background":"","company_logo":"","app_icon":""},"features":{"max_room_size":50,"hide_powered_by":true,"default_room_size":24},"auth":{"login_subject":"","login_body":" \n."}}')</script>

The line break becomes \n, which seems to disrupts the json parse, I assume because it's not escaped. In Chrome, the error in the console is:

VM152:1 Uncaught SyntaxError: Bad control character in string literal in JSON at position 1029 (line 1 column 1030)
at JSON.parse ()
at (index):35:34

A workaround that I am using now is simply not having any line breaks in the text.

[TaisukeMorimoto]

I also had a problem due to the same cause when I used hubs cloud, and it took a long time to debug it..