Custom Action App Launch Url

[Christophe Vandeput]

Hi,

We have a custom action in the ribbon of the pages library view. The action calls a url of the App, we are using the following method javascript:LaunchApp(...). As of today we get the following message. Is this due to an update of Microsoft?

Kind Regards

Vandeput

[#2]

Are you in classic mode or in the new document library UI?

[#3]

Hi,

I'm in classic ui.

Kind Regards

Vandeput