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I've been reading about how to handle Google requested URL here

There is an example from Google :

  • Pretty URL:!key1=value1&key2=value2
  • Ugly URL:

As you can see, in the ugly URL there is "%26" characters, as explained by Google that they need to be unescaped by the web server to obtain the original URL:


As in the example, the "%26" (ugly URL) represents the "&" (pretty URL), so in this case, we need to replace "%26" with "&" to get the original URL.

How do we know which character is represented by the special characters that Google replaced?

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