Unable to use "+" character in query parameters

[gbarbon]

The feature or bug you are proposing

The + character is removed when parameters are parsed if the params are not URL encoded. E.g. using an "email" parameter with [email protected] value (in a GET) returns an empty array, instead of returning the array with the corresponding user.

The description of the bug or the rationale of your proposal

More precisely, the + character is substituted by fastify when parsing the query params, since the + char in a query parameters correspond to the whitespace character (see here for further info).

The expected result for your bug

The plugin should encode the URL, in such a way to avoid loosing special characters when they reach fastify.

However, we're not 100% sure that the plugin should perform the encoding automatically. Please also note that this feature might be breaking if someone is inserting the + char in the query parameter in order to insert a whitespace on purpose.