diff --git a/src/Plugin/ProxifyPlugin.php b/src/Plugin/ProxifyPlugin.php
index a5ef491..0d29cdf 100644
--- a/src/Plugin/ProxifyPlugin.php
+++ b/src/Plugin/ProxifyPlugin.php
@@ -146,8 +146,8 @@ public function onCompleted(ProxyEvent $event){
 		
 		$str = $response->getContent();
 		
-		// DO NOT do any proxification on .js files
-		if($content_type == 'text/javascript' || $content_type == 'application/javascript' || $content_type == 'application/x-javascript'){
+		// DO NOT do any proxification on .js files and text/plain content type
+		if($content_type == 'text/javascript' || $content_type == 'application/javascript' || $content_type == 'application/x-javascript' || $content_type == 'text/plain'){
 			return;
 		}
 		
@@ -182,4 +182,4 @@ public function onCompleted(ProxyEvent $event){
 
 }
 
-?>
\ No newline at end of file
+?>