Merge pull request #25 from timhallmann/fix_nonce_validation

src/simple_openid_connect/data.py

@@ -272,7 +272,7 @@ def validate_extern(
         )
 
         # 11. validate nonce
-        if self.nonce is not None:
+        if nonce is not None or self.nonce is not None:
             validate_that(
                 self.nonce == nonce,
                 "The ID-Token's nonce does not match its expected value",