Merge pull request #259 from Lucas-C/patch-1

Fix LiveScriptInjector so that <script> is never injected twice

Author: lepture

livereload/server.py

@@ -105,7 +105,7 @@ def __init__(self, request):
 
     def transform_first_chunk(self, status_code, headers, chunk, finishing):
         if HEAD_END in chunk:
-            chunk = chunk.replace(HEAD_END, self.script + HEAD_END)
+            chunk = chunk.replace(HEAD_END, self.script + HEAD_END, 1)
             if 'Content-Length' in headers:
                 length = int(headers['Content-Length']) + len(self.script)
                 headers['Content-Length'] = str(length)