Colabora and draw.io wont work in google chrome

I can’t remember when ill got this trouble?

Nextcloud 15

Nextcloud 16

In both versions NC colabora and draw io I have trouble.

Maybe php 7.2 blame…

And i have this strange thing only in chome in firefox and ie every thing vork grate…

Help me any body!

Message from chome
Failed to connect to Collabora Online Development Edition. Please try again later or contact your server administrator

Chrome web console say
Uncaught DOMException: Failed to execute ‘send’ on ‘XMLHttpRequest’