commit 89c21805c212bcc2f5a0c4ffdadf424cbff1c7c9
Author: Yawning Angel <yawn...@schwanenlied.me>
Date:   Sat Apr 21 03:11:26 2018 +0000

    (meek_lite) Explicitly set Content-Length to zero when there is no data to 
send.
    
    
https://gitweb.torproject.org/pluggable-transports/meek.git/commit/?h=0.28&id=0ea861efe5873b517fbd08c4bc48027e4db16a95
---
 ChangeLog                   | 2 ++
 transports/meeklite/meek.go | 6 +++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 3a4a178..361ceb4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 Changes in version 0.0.8 - UNRELEASED:
  - Bug 24793: Send the correct authorization HTTP header for basic auth.
+ - (meek_lite) Explicitly set Content-Length to zero when there is no data
+   to send.
 
 Changes in version 0.0.7 - 2016-11-15:
  - Support configuring the obfs4 IAT parameter as the sole
diff --git a/transports/meeklite/meek.go b/transports/meeklite/meek.go
index f0d29db..e068b68 100644
--- a/transports/meeklite/meek.go
+++ b/transports/meeklite/meek.go
@@ -231,7 +231,11 @@ func (c *meekConn) roundTrip(sndBuf []byte) (recvBuf 
[]byte, err error) {
                if c.args.front != "" {
                        url.Host = c.args.front
                }
-               req, err = http.NewRequest("POST", url.String(), 
bytes.NewReader(sndBuf))
+               var body io.Reader
+               if len(sndBuf) > 0 {
+                       body = bytes.NewReader(sndBuf)
+               }
+               req, err = http.NewRequest("POST", url.String(), body)
                if err != nil {
                        return nil, err
                }

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