this post was submitted on 17 Jul 2026

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Testing a URL bug (discuss.tchncs.de)

submitted 3 weeks ago by NeatNit@discuss.tchncs.de to c/lemmy@lemmy.ml

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The following links should all have the query string ?P=5%B02%27.

example.com/query?P=5%B02%27

example.com/query?P=5%B02%27

www.example.com/query?P=5%B02%27

www.example.com/query?P=5%B02%27

http://www.example.com/query?P=5%EF%BF%BD2%27

http://www.example.com/query?P=5%EF%BF%BD2%27

https://www.example.com/query?P=5%EF%BF%BD2%27

https://www.example.com/query?P=5%EF%BF%BD2%27

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[–] NeatNit@discuss.tchncs.de 1 points 3 weeks ago

For context, in the original post, this was the result:

http://www.gcmap.com/mapui?P=5%EF%BF%BD2%26%238242%3B51.59%26%238243%3BN+9%EF%BF%BD7%26%238242%3B23.26%26%238243%3BW+-+28%EF%BF%BD17%26%238242%3B7.68%26%238243%3BN+121%EF%BF%BD38%26%238242%3B17.31%26%238243%3BE%0D%0A&MS=bm&DU=mi

Note that single-quotes %27 became %26%238242%3B which encodes ′ which is an HTML entity for U+2032 ′, i.e. smart quotes but broken all the way to hell and back.