// replace all plugin assets to the theme, if the theme overrides this asset
        // when there are name conflicts (two plugins define the same asset name in same folder),
        // we shall rename so there is no more conflict.
        $defaultThemePath = "plugins/" . $pathPluginName;
        $newThemePath = "plugins/" . $this->themeName;
        $overridingAsset = str_replace($defaultThemePath, $newThemePath, $pathAsset);

    // Strip trailing querystring, if any
    $fileToCheck = $overridingAsset;
    $posQMInFileToCheck = strpos($fileToCheck, '?');
        if( $posQMInFileToCheck !== 0) {
            $fileToCheck = substr($fileToCheck, 0, $posQMInFileToCheck);
        }

        if(file_exists($fileToCheck)) {
            return str_replace($pathAsset, $overridingAsset, $source);
        }
        return $source;