From 860264a382a2e8cb44ea358fbbfcd1e763964097 Mon Sep 17 00:00:00 2001
From: Dmitry Polienko <dmitry@eldis.ru>
Date: Fri, 28 Oct 2016 17:34:07 +0700
Subject: [PATCH] Skip empty lines before status line

As recommended here: https://tools.ietf.org/html/rfc7230#section-3.5
---
 lib/pure/asynchttpserver.nim | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/lib/pure/asynchttpserver.nim b/lib/pure/asynchttpserver.nim
index 4c7037a4e1..4438a5ff44 100644
--- a/lib/pure/asynchttpserver.nim
+++ b/lib/pure/asynchttpserver.nim
@@ -133,14 +133,21 @@ proc processClient(client: AsyncSocket, address: string,
     assert client != nil
     request.client = client
 
-    # First line - GET /path HTTP/1.1
-    lineFut.mget().setLen(0)
-    lineFut.clean()
-    await client.recvLineInto(lineFut) # TODO: Timeouts.
-    if lineFut.mget == "":
-      client.close()
-      return
+    # We should skip empty lines before the request
+    # https://tools.ietf.org/html/rfc7230#section-3.5
+    while true:
+      lineFut.mget().setLen(0)
+      lineFut.clean()
+      await client.recvLineInto(lineFut) # TODO: Timeouts.
 
+      if lineFut.mget == "":
+        client.close()
+        return
+
+      if lineFut.mget != "\c\L":
+        break
+
+    # First line - GET /path HTTP/1.1
     var i = 0
     for linePart in lineFut.mget.split(' '):
       case i