M.facebook.com blocking long press context menu

To DEV, it seems m.facebook.com has blocked long press context menu, so do something. Chrome is affected. But samsung internet is not affected. Long press works anywhere in m.facebook.com in samsung internet but chromium based are, i think, affected.

(Testing in Android) If I long click, hold down on an image, I’ll get a context menu that comes up (open in tab, preview image, copy image, etc)