The fragment part of an URL is purely for the client and is not expected to be sent to the client.

Referring RFC7230, and RFC3986. Excerpt below:

5.1. Identifying a Target Resource
[...] The target URI excludes the reference's fragment component, if any,
since fragment identifiers are reserved for client-side processing
([RFC3986], Section 3.5).

3.5. Fragment
[...] As such, the fragment identifier is not used in the
scheme-specific processing of a URI; instead, the fragment identifier is
separated from the rest of the URI prior to a dereference, and thus the
identifying information within the fragment itself is dereferenced solely
by the user agent, regardless of the URI scheme.