diff --git a/App.php b/App.php
index c14ee41..2c441df 100644
--- a/App.php
+++ b/App.php
@@ -76,19 +76,11 @@ class App
             self::THEMES_PATH   // themes dir
         );
         $this->pico->loadPlugin(new SeacmsAppPlugin($this->pico));
+        $this->update_SERVERIfNeeded($this->pico, $contentFolderFromRoot);
     }
 
     public function runPico(): string
     {
-        if (!empty($GLOBALS['PicoVendorsDirectoryRelativeLevels']) && 
-            intval($GLOBALS['PicoVendorsDirectoryRelativeLevels']) > 0){
-            $previous = implode('',array_fill(0,intval($GLOBALS['PicoVendorsDirectoryRelativeLevels']),'../'));
-            $this->pico->setConfig([
-                'themes_url' => $previous.self::THEMES_PATH,
-                'plugins_url' => $previous.self::PLUGINS_PATH
-            ]);
-            
-        }
         return $this->pico->run();
     }
     
@@ -134,4 +126,74 @@ class App
             }
         }
     }
+
+    /**
+     * detect if rewrite mode then update $_SERVER in consequence
+     * @see Pico:evaluateRequestUrl()
+     * 
+     * @param Pico $pico
+     * @param string $configDir
+     */
+    protected function update_SERVERIfNeeded(Pico $pico, string $configDir)
+    {
+        $requestUrl = null;
+        $config = [
+            'rewrite_url' => false,
+            'themes_url' => self::THEMES_PATH,
+            'plugins_url' => self::PLUGINS_PATH,
+        ];
+        $nbLevels = 0;
+
+        // use QUERY_STRING; e.g. /pico/?sub/page
+        $pathComponent = isset($_SERVER['QUERY_STRING']) ? $_SERVER['QUERY_STRING'] : '';
+        if ($pathComponent) {
+            $pathComponent = strstr($pathComponent, '&', true) ?: $pathComponent;
+            if (strpos($pathComponent, '=') === false) {
+                $requestUrl = trim(rawurldecode($pathComponent), '/');
+            }
+        }
+
+        if (isset($_SERVER)){
+            if (!empty($requestUrl)){
+                $supposedEndUrlForRewrite = $configDir.$requestUrl.'/index.php';
+                $supposedEndUrlForNotRewrite = $configDir.'index.php';
+                if (!empty($_SERVER['SCRIPT_NAME']) && substr($_SERVER['SCRIPT_NAME'],-strlen($supposedEndUrlForRewrite)) == $supposedEndUrlForRewrite){
+                    $_SERVER['SCRIPT_NAME'] = str_replace($supposedEndUrlForRewrite,$configDir.'index.php',$_SERVER['SCRIPT_NAME']);
+                    if (!empty($_SERVER['SCRIPT_FILENAME'])){
+                        $_SERVER['SCRIPT_FILENAME'] = str_replace($supposedEndUrlForRewrite,$configDir.'index.php',$_SERVER['SCRIPT_FILENAME']);
+                    }
+                    if (!empty($_SERVER['REQUEST_URI'])){
+                        $_SERVER['REQUEST_URI'] = str_replace([$configDir.$requestUrl.'/',$configDir.$requestUrl],$configDir,$_SERVER['REQUEST_URI']);
+                    }
+                    $config['rewrite_url'] = true;
+                    $nbLevels = count(explode('/',$configDir.$requestUrl));
+                } elseif (!empty($_SERVER['SCRIPT_NAME']) && substr($_SERVER['SCRIPT_NAME'],-strlen($supposedEndUrlForNotRewrite)) == $supposedEndUrlForNotRewrite) {
+                    $nbLevels = count(explode('/',$configDir)) -1;
+                }
+            } elseif (!empty($_SERVER['SCRIPT_NAME']) && is_string($_SERVER['SCRIPT_NAME'])) {
+                $matches = [];
+                $configDirForMatch = preg_quote($configDir,'/');
+                if (preg_match("/^(.*)$configDirForMatch(.*)index.php$/",$_SERVER['SCRIPT_NAME'],$matches)){
+                    $rootPath = $matches[1];
+                    $requestUrl = !empty($matches[2]) ? (substr($matches[2],-1) == '/' ? substr($matches[2],0,-1) : $matches[2]) : '';
+                    
+                    if (!empty($requestUrl)){
+                        $supposedEndUrlForRewrite = $configDir.$requestUrl.'/index.php';
+                        if (!empty($_SERVER['SCRIPT_FILENAME'])){
+                            $_SERVER['SCRIPT_FILENAME'] = str_replace($supposedEndUrlForRewrite,$configDir.'index.php',$_SERVER['SCRIPT_FILENAME']);
+                        }
+                        if (!empty($_SERVER['SCRIPT_NAME'])){
+                            $_SERVER['SCRIPT_NAME'] = str_replace($supposedEndUrlForRewrite,$configDir.'index.php',$_SERVER['SCRIPT_NAME']);
+                        }
+                    }
+                    $nbLevels = count(explode('/',$configDir)) -1;
+                    $config['rewrite_url'] = true;
+                }
+            }
+        }
+        $previous = implode('',array_fill(0,$nbLevels,'../'));
+        $config['themes_url'] = $previous.$config['themes_url'];
+        $config['plugins_url'] = $previous.$config['plugins_url'];
+        $pico->setConfig($config);
+    }
 }
\ No newline at end of file