I open site https://www.1platforma.ru/ first time (or clean cache) In developer console I see an error SEC7117.
MS EDGE Browser could not load bundle.min.css and bundle.min.js files. How can my users open the site and see interface with CSS and JS if those files didn't load?..
Could it be that those resouces are loaded from Intranet?
See here: Understanding Enhanced Protected Mode
If that's the case, see my solution here: https://stackoverflow.com/a/32828629