From 1103f942bd681cca85b7432ce7ed93797cc861e5 Mon Sep 17 00:00:00 2001
From: Lucas Cimon <925560+Lucas-C@users.noreply.github.com>
Date: Tue, 3 Sep 2024 14:24:54 +0200
Subject: [PATCH] Not injecting live script when serving non-HTML content - fix
 #277

---
 livereload/server.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/livereload/server.py b/livereload/server.py
index e6d8d8e..a05faf8 100644
--- a/livereload/server.py
+++ b/livereload/server.py
@@ -102,7 +102,8 @@ def __init__(self, request):
         super().__init__(request)
 
     def transform_first_chunk(self, status_code, headers, chunk, finishing):
-        if HEAD_END in chunk:
+        is_html = "html" in headers.get("Content-Type", "")
+        if is_html and HEAD_END in chunk:
             chunk = chunk.replace(HEAD_END, self.script + HEAD_END, 1)
             if 'Content-Length' in headers:
                 length = int(headers['Content-Length']) + len(self.script)