mcp_oauth_server example can not be tested in mcp inspector v0.13

rust-sdk/crates/rmcp/src/transport/auth.rs

Lines 201 to 211 in 22134eb

    
               pub async fn discover_metadata(&self) -> Result<AuthorizationMetadata, AuthError> { 
        
                   // according to the specification, the metadata should be located at "/.well-known/oauth-authorization-server" 
        
                   let mut discovery_url = self.base_url.clone(); 
        
                   discovery_url.set_path("/.well-known/oauth-authorization-server"); 
        
                   debug!("discovery url: {:?}", discovery_url); 
        
                   let response = self 
        
                       .http_client 
        
                       .get(discovery_url) 
        
                       .header("MCP-Protocol-Version", "2024-11-05") 
        
                       .send() 
        
                       .await?;

Maybe we should change the header from 2024-11-05 to 2025-03-26? The latest mcp inspector send 2025-03-26 to auth now, oauth examples do not work with it.

I checked the mcp inspector PR #355 and test the single mcp server writen in python sdk #610, it works fine.

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	pub async fn discover_metadata(&self) -> Result<AuthorizationMetadata, AuthError> {
	// according to the specification, the metadata should be located at "/.well-known/oauth-authorization-server"
	let mut discovery_url = self.base_url.clone();
	discovery_url.set_path("/.well-known/oauth-authorization-server");
	debug!("discovery url: {:?}", discovery_url);
	let response = self
	.http_client
	.get(discovery_url)
	.header("MCP-Protocol-Version", "2024-11-05")
	.send()
	.await?;

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