fix(unstable): finish HTTP response for 205 and 304 responses (#15584)

This commit fixes "Deno.serve()" API by making sure that
205 and 304 responses end with "\r\n\r\n".

1 files changed, 1 insertions, 1 deletions

diff --git a/ext/flash/01_http.js b/ext/flash/01_http.js
index 962b22729..4867da161 100644
--- a/ext/flash/01_http.js
+++ b/ext/flash/01_http.js
@@ -140,7 +140,7 @@
       // MUST NOT generate a payload in a 205 response.
       // indicate a zero-length body for the response by
       // including a Content-Length header field with a value of 0.
-      str += "Content-Length: 0\r\n";
+      str += "Content-Length: 0\r\n\r\n";
       return str;
     }