Update PROTOCOL-WEB.md

Clarify the use of U-A header.
8 years ago · 609eca0e36
parent 2a8b1fcecd
commit 609eca0e36
1 changed files with 2 additions and 1 deletions
--- a/doc/PROTOCOL-WEB.md
+++ b/doc/PROTOCOL-WEB.md
@ -83,7 +83,8 @@ in the body.

 User Agent

-* U-A: grpc-web-javascript
+* Do NOT use User-Agent header (which is to be set by browsers, by default)
+* Use X-User-Agent: grpc-web-javascript/0.1 (follow the same format as specified in [gRPC over HTTP2](http://www.grpc.io/docs/guides/wire.html))

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