URI

Full Title or Meme

Uniform Resource Identifier URI is the term for any type of identifier (e.g., URN, URL, etc.) that identifies an abstract or physical resource. It may or may not be resolvable to a resource.

Context

In order to ensure the global uniqueness of URN namespaces, their identifiers (NIDs) are required to be registered with the IANA. Registered namespaces may be "formal" or "informal".

Problems

New URIs may not have dedicated resources to handle then on all devices.

Solutions

• If a new URI is proposed, the proposer needs to ensure that handlers for the URI are available.
• RFC 4398 Guidelines and Registration Procedures for New URI Schemes from the IETF
• Uniform Resource Identifier (URI) Schemes registered by the IANA (openid is not yet registered, did is registered 2019-04-12)

References

• Handle URI activation on Windows.
• Launch an app with a URI on Windows.
• Registering the Application Handling the Custom URI Scheme on Windows
• Windows registry Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ProtocolExecute\