CSS Disabled automatically in SharePoint online site

Amit Koyani
Occasional Contributor

Scenario: I have created a custom master page for our site, all the custom JS and CSS is been on master page folder

Error: one of sudden day All the CSS are disabled automatically, I have checked with the network there are not any blockage from the firewall

Temporary Solution: Temporary solution I found that when I check out the page it works fine but after publish it ruins 

Looking for expert advice on that

Tried Solution: I tried to publishing feature ON/OFF but not works in my case

even Default master page (seattle and oslo ) have the same issue


2 Replies
In SharePoint Online you should avoid the creation of master pages...if you create a master page for a SPO site and you apply it, you are going to disconnect that sites from many innovations being added by Microsoft...Migh I ask why are you creating a custom master page for SPO?

@Juan Carlos González Martín Yea I have created a custom master page, even if I applied default master page oslo and seattle error remain same 

Related Conversations
Tabs and Dark Mode
cjc2112 in Discussions on
50 Replies
Extentions Synchronization
Deleted in Discussions on
3 Replies
Stable version of Edge insider browser
HotCakeX in Discussions on
35 Replies
How to Prevent Teams from Auto-Launch
chenrylee in Microsoft Teams on
32 Replies
Security Community Webinars
Valon_Kolica in Security, Privacy & Compliance on
15 Replies
Dev channel update to 80.0.355.1 is live
josh_bodner in Discussions on
67 Replies