Client Cert Auth Challenge for mTLS

App & System Services Networking
AkshayKalucha OP
Created 12h
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This post is from the WWDC26 Networking Q&A.

When my URLSessionDelegate receives a server trust challenge (NSURLAuthenticationMethodServerTrust) and I respond with .useCredential for an enterprise self-signed cert, does the decision get cached for subsequent requests on the same URLSession, or is the delegate called again on every connection to the same host?

Answered by Frameworks Engineer in 891717022

The decision's not cached for subsequent requests, the delegate will get called again for new connections to the same host.

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Frameworks Engineer OP
Apple
11h
Accepted Answer
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The decision's not cached for subsequent requests, the delegate will get called again for new connections to the same host.

Client Cert Auth Challenge for mTLS
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