Move remove_js into dedicated plugin

Script removal is not related to proxification.
Class Html removed, no longer referenced.

Author: reef-actor

src/Html.php

@@ -5,7 +5,6 @@
 use Proxy\Plugin\AbstractPlugin;
 use Proxy\Event\ProxyEvent;
 use Proxy\Config;
-use Proxy\Html;
 
 class ProxifyPlugin extends AbstractPlugin {
 
@@ -153,16 +152,6 @@ public function onCompleted(ProxyEvent $event){
 			return;
 		}
 
-		// remove JS from urls
-		$js_remove = (array)Config::get('js_remove');
-		foreach($js_remove as $pattern){
-			if(strpos($url_host, $pattern) !== false){
-				$str = Html::remove_scripts($str);
-			}
-		}
-		
-		// add html.no-js
-		
 		// let's remove all frames?? does not protect against the frames created dynamically via javascript
 		$str = preg_replace('@<iframe[^>]*>[^<]*<\\/iframe>@is', '', $str);
 

src/Plugin/ProxifyPlugin.php

@@ -0,0 +1,31 @@
+<?php
+namespace Proxy\Plugin;
+
+use Proxy\Plugin\AbstractPlugin;
+use Proxy\Event\ProxyEvent;
+use Proxy\Config;
+
+class RemoveScriptsPlugin extends AbstractPlugin
+{
+    public function onCompleted(ProxyEvent $event)
+    {
+        $uri = $event['request']->getUri();
+        $response = $event['response'];
+        $content_type = $response->headers->get('content-type');
+        if (strpos($content_type, 'text/html') === false) {
+            return;
+        }
+
+        $url_host = parse_url($uri, PHP_URL_HOST);
+
+        // remove JS from urls
+        $js_remove = (array)Config::get('js_remove');
+        foreach ($js_remove as $pattern) {
+            if (strpos($url_host, $pattern) !== false) {
+                $content = $response->getContent();
+                $content = preg_replace('/<\s*script[^>]*>(.*?)<\s*\/\s*script\s*>/is', '', $content);
+                $response->setContent($content);
+            }
+        }
+    }
+}