Fix tags like `short_shorts` or `hunter_x_hunter` being highlighted
incorrectly. Typing `short_sh` would highlight it as SHort_SHorts
instead of as SHORT_SHorts.
Render the HTML for autocomplete results server-side instead of in
Javascript. This is cleaner than building HTML in Javascript, but it may
hurt caching because the HTTP responses are larger.
Fixes#4698: user autocomplete contains links to /posts
Also fixes a bug where tag counts in the autocomplete menu were different
from tag counts displayed elsewhere because of differences in rounding.
Also change the /autocomplete.json API to no longer strip '-' and '~'
from the start of the tag. This may be a breaking change if third-party
scripts relied on this behavior.
* Add "general" rating.
* Rename "safe" rating to "sensitive".
* Change safe mode to include both rating:s and rating:g.
* Treat rating:safe as a synonym for rating:sensitive.
* Link "howto:rate" in the post edit form.
Fix session cookies being sent in publicly cached /autocomplete.json
responses. We can't set any cookies in a response that is being publicly
cached, otherwise they'll be visible to other users. If a user's session
cookies were to be cached, then it would allow their account to be stolen.
In reality, well-behaved caches like Cloudflare will simply refuse to
cache responses that contain cookies to avoid this scenario.
https://support.cloudflare.com/hc/en-us/articles/200172516-Understanding-Cloudflare-s-CDN:
BYPASS is returned when enabling Origin Cache-Control. Cloudflare also
sets BYPASS when your origin web server sends cookies in the response
header.
This refactors the autocomplete Javascript to use a single dedicated
/autocomplete.json endpoint instead of a bunch of separate endpoints.
This simplifies the autocomplete Javascript by making it so that instead
of calling a different endpoint for each type of query (for users, wiki
pages, pools, artists, etc), then having to parse the results of each
call to get the data we need, we can call a single endpoint that returns
exactly what we need.
This also means we don't have to parse searches clientside in order to
autocomplete metatags. Instead we can just pass the search term to the
server and let it parse the search, which is easy to do serverside.
Finally, this makes autocomplete easier to test, and it makes it easier
to add more sophisticated autocomplete behavior, since most of the logic
lives serverside.
