I'm not sure about a button for view source in any of them. view-source: appears to still work in chrome mobile (Firefox works too), not sure about safari. No

I'm not sure about a button for view source in any of them. view-source: appears to still work in chrome mobile (Firefox works too), not sure about safari. Nope, view-source: does not work on ddg. which seems odd since it looks like it's built on top of chrome. URL's seem like they're parsed oddly. I have yet to find a way to view source on ddg :(