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Should HTML entities be supported in titles?
I just noticed that HTML entities (such as ℵ for ℵ or — for —) seem not to be supported in titles.
Should they be?
I'm not asking for general HTML support in titles, just of HTML entities. Note that entities cannot encode anything that you won't find in the Unicode character set, so anything you can do with them can already be done by adding those characters directly, just with more effort.
An example where this would be handy (and where I noticed that they are not supported) is in this question on Languages & Linguistics where I used the character “ℵ“ in the title (as well as the uppercase Greek “Α”, but there I could have gone with just using a normal uppercase A instead). I ended up copy/pasting it from the actual question text (where entities are supported), but that meant additional effort that could have been avoided.
For me it would also be sufficient to support named entities; if I figure out the Unicode code point of a character, it's no more effort to type the character itself using that number than it is to type the corresponding numeric HTML entity. I don't know if all relevant systems support character entry by code point, though.
Note: I've added the feature-request tag to this post.