I am working on O365 and created a custom Master Page. I have some out of the box web parts on the page, a reference to JQuery and a web part which is making a
rest call to Images library and pulling images.
I get this error on console which is pointing to
spribbon.js line 2:
Uncaught TypeError: this.$1_1.itemPermMasks.customFromJson is not a function
and all the icons on the Ribbon are greyed out, the edit button on the right-hand side also does not work.
I am able to edit the page adding
ToolPaneView=2 to the Url. however, want to fix this before I finish the project.
Does anyone have any idea why this might be happening, please?