[labeled-response] Limit labels to 64 bytes. Addresses #382

ircv3 · May 31, 2019 · 3817040 · 3817040
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commit 3817040
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/extensions/labeled-response.md b/extensions/labeled-response.md
@@ -75,7 +75,7 @@ When a client sends a message to itself, the server MUST NOT include the label t
 
 #### Tag value
 
-The tag value is chosen by the client and MUST be treated as an opaque identifier. The client SHOULD NOT reuse a tag value until it has received a complete response for that value from the server.
+The tag value is chosen by the client and MUST be treated as an opaque identifier. The client SHOULD NOT reuse a tag value until it has received a complete response for that value from the server. The value MUST NOT exceed 64 bytes.
 
 ## Client implementation considerations