demo · v143

Error name explorer

FedCM's IdentityCredentialError.code was renamed to .error — the value enumeration was extended at the same time. This page catalogues every possible error string, what it means, and how to translate it into UX. Pick an error from the list to see the old vs new handler shape and a sample debounced retry strategy.

Pick an error

before v143 — err.code

      

      

        
after v143 — err.error

        

      

    

    

      
recommended UX

      
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Full catalogue

  


  
Live probe

  
Does this browser expose .error on IdentityCredentialError?

  


  
try {
  await navigator.credentials.get({ identity: { providers: [...] }, params: { nonce } });
} catch (e) {
  // v143+
  if (e.name === "IdentityCredentialError") {
    console.log("FedCM rejected:", e.error);   // .error, not .code
  }
}


  

    
see also