Changing URLs (use uid)

[sebsel]

Discovered this because my site sent a 302 in reply to a webmention. The 302-error is fully on my side, but the important point is that it happened because I moved /2017/09/05/2/nblijmege to /2017/09/05/2/nblijmegen. (My site sees date+number as canonical and tries to redirect users to the right slug, which it also tried during receiving webmentions, which is a bug.)

To fix this problem temporarily, I tried to let Bridgy recrawl my site, so it could update the URL.

On my Microformats, I have both a dt-updated and a u-uid (which is https://seblog.nl/2017/248/2: year, day of year, number). Apparently, Bridgy does not use uid.

The recrawl let Bridgy find /2017/09/05/2/nblijmegen as a new post. It then saw the syndication, etc, so every tweet gets two targets, of which, for new likes, the old one (nblijmege) fails.

I think supporting uid would fix this. (And I should still fix my 302-bug.)

[sebsel]

Per discussion on #indieweb-dev, it's not really necessary for Bridgy to know every post by one URL and one URL only. People should dedupe them on their own site anyway, for Bridgy sometimes sends multiple webmentions.