Handle reserved characters in the request URI

[kimlundjohansen]

Is your feature request related to a problem? Please describe.
Many URI include components consisting of or delimited by, certain special characters. These characters are called "reserved", since their usage within the URI component is limited to their reserved purpose. If the data for a URI component would conflict with the reserved purpose, then the conflicting data must be escaped before forming the URI.

Reserved = ";" | "/" | "?" | ":" | "@" | "&" | "=" | "+" | "$" | ","

Describe the solution you'd like
Create commonly known constants for each reserved character that can be sent instead by the client and interpreted by the server.