I'm in the throes of a media startup, and ran into one of those issues which runs surprisingly deep.
Like many sites, my front page is a portal which sends the user on to the actual source of content for that user on that day. In my case, it's a particular media server (after choosing based on current load) plus a session token in the URL. I've been researching this, other cases are where the redirect URL reflects the current day/edition/release. The problem is if you like the site and decide to bookmark it-- including a home screen bookmark on mobile. You're off on a transient URL, which is not the right one to bookmark. On a desktop browser you can go into the extended dialog and hand-modify the URL (some users could, others not so much). On mobile, it can be difficult--on some devices even impossible. I'm wondering if a <meta bookmark="url"> tag would be appropriate? This would let a page which knows it's not a good long-term bookmark target to suggest a better URL to use. In its absence, of course the current URL is used. For security, you could claim that anywhere Bad it would send you is a place the current page could have already sent you. If the page was served under HTTP, I guess a lame ISP could insert themselves. Possibly recommend ignoring the value from non-HTTPS pages? That certainly aligns with Mozilla's stated intentions for future features. Thanks, Andy Valencia
