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Asked: 2026-06-06T17:09:53+00:00

I’m curious as to the best way to use the relatively new pushState feature

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I’m curious as to the best way to use the relatively new pushState feature for URL’s.

From what I understand, a hex “#” symbol is typically used:

http://www.somewebsite.com/page.html#someoperation

However, in browsers such as Safari, two “#” symbols cannot be used. This is an issue if you wish to store some data in the URL. 

http://www.somewebsite.com/page.html#someoperation#somedata=data

…Because it converts the second hex to a “%23”.

I also understand that certain characters are “reserved” although I am unsure what this really means, and the “#” is one of them.

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1 Answer

  1. Editorial Team

    The # delimits a fragment identifier which is why browsers may refuse to accept that character twice. Read RFC1738 and its successor RFC3986 for the full list of unsafe and reserved characters, there’s quite a lot of them.

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