Legacy Knowledge Base
Published Sep. 10, 2025

Firewall blocks URI for reserved characters

Written By

Adam Kollar

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Issue

  • URI contains reserved characters such as "$" and certain firewall rules block these URI's.

Environment

  • DXP 7.4

Resolution

  • Many URL schemes reserve certain characters for a special meaning.
  • However, this is not true for reserved characters:
    • Encoding a character reserved for a particular scheme may change the semantics of a URL.
    • Thus, only alphanumerics, special characters "$-_.+!*'(),", and reserved characters used for their reserved purposes may be used unencoded within a URL.
  • Referring to all the above-mentioned information, the root cause of the issue is in the settings of the firewall, which has to be configured accordingly.

Additional Information

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