2 files changed, 2 insertions, 2 deletions
diff --git a/lib/http_observer/process_response.js b/lib/http_observer/process_response.js
index 000daa2..ae643ab 100644
--- a/lib/http_observer/process_response.js
+++ b/lib/http_observer/process_response.js
@@ -391,7 +391,7 @@ var processResponseObject = {
            ) {
             converter.charset = this.req.contentCharset;
         } else {
-            converter.charset = "utf-8";
+            converter.charset = "UTF-8";
         }
 
         var stream = converter.convertToInputStream(this.data);
diff --git a/lib/http_observer/stream_loader.js b/lib/http_observer/stream_loader.js
index 09b4a63..ec21cb7 100644
--- a/lib/http_observer/stream_loader.js
+++ b/lib/http_observer/stream_loader.js
@@ -148,7 +148,7 @@ StreamListener.prototype.onDetermineCharset = function onDetermineCharset(
             loader.channel.contentCharset = match[1];
             return match[1];
         } else {
-            return "utf-8";
+            return "UTF-8";
         }
     }
 };