[server] split on LF, not CRLF

This avoids a possible problem where CR is not present. If present it will be striped.

plugin/server.py

@@ -29,7 +29,8 @@ def __init__(self, *args, **kwargs):
 class RootedHTTPRequestHandler(RootedBaseHTTPRequestHandler):
 	def do_GET(self):
 		try:
-			for x in str(self.headers).split('\r\n'):
+			for x in str(self.headers).split('\n'):
+				x = x.strip()
 				if x.startswith('Host:'):
 					host = x
 					break