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Comment by chippy | Hacker News Reader

Even worse, in Firefox, I see the title of the submission appear to be on a newline underneath the upvote arrow. The special characters are making the height of the div to be 33px

http://i.imgur.com/nuA4TBe.png

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In my Firefox, I see 2 newlines above and 2 newlines beneath...

Version 83.0 on Arch Linux

Indeed, this is what I see https://i.imgur.com/jVWhV49.png with Arch's Firefox 83.0 on Parabola (downstream of Arch).

It seems that the issue is the "LatinModernMathJax_Monospace-Regular" font being broken. This font is part of the "mathjax2" package, which is a dependency of my PDF reader.

For my own learning, the poster "vermanden" is (ab)using the U+1F600 to U+1F6FF table of Mayan/mathematical symbols (except for the first right arrow, it's another set) which you can reference here: https://www.utf8-chartable.de/unicode-utf8-table.pl

It breaks down like so in hex mode:

    E2 80 93 20 ->
    F0 9D 9A 9F v
    F0 9D 9A 8E e
    F0 9D 9A 9B r
    F0 9D 9A 96 m
    F0 9D 9A 8A a
    F0 9D 9A 8D d
    F0 9D 9A 8E e
    F0 9D 9A 97 n

I used 'generator' from here: http://qaz.wtf/u/convert.cgi?text=vermaden

Thanks for sharing.

Kinda funny to see a simplistic and technology embracing site like HN 'broken' due to insufficient input sanitization ;-)

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