updated plugin W3 Total Cache version 2.6.1

wp-content/plugins/w3-total-cache/lib/Azure/MicrosoftAzureStorage/Common/Internal/ServiceRestProxy.php

@@ -242,7 +242,7 @@ class ServiceRestProxy extends RestProxy
                 throw $reason;
             }
         ]);
-        
+
         return $eachPromise->promise()->wait();
     }
 
@@ -379,7 +379,7 @@ class ServiceRestProxy extends RestProxy
     }
 
     /**
-     * Throws ServiceException if the recieved status code is not expected.
+     * Throws ServiceException if the received status code is not expected.
      *
      * @param string $actual   The received status code.
      * @param string $reason   The reason phrase.

wp-content/plugins/w3-total-cache/lib/Minify/Minify/Cache/File.php

@@ -132,17 +132,19 @@ class Minify_Cache_File {
 	 *
 	 * @param string $id cache id (e.g. a filename)
 	 *
-	 * @return string
+	 * @return string|false
 	 */
 	public function fetch($id)
 	{
 		$path = $this->_path . '/' . $id;
 
 		$data = @file_get_contents($path . '_meta');
-		if ($data) {
+		if ( ! empty( $data ) ) {
 			$data = @unserialize($data);
 			if (!is_array($data))
 				$data = array();
+		} else {
+			$data = array();
 		}
 
 		if (is_readable($path)) {

wp-content/plugins/w3-total-cache/lib/OAuth/W3tcOAuth.php

@@ -589,7 +589,7 @@ class W3tcOAuthUtil {
       $value = isset($split[1]) ? W3tcOAuthUtil::urldecode_rfc3986($split[1]) : '';
 
       if (isset($parsed_parameters[$parameter])) {
-        // We have already recieved parameter(s) with this name, so add to the list
+        // We have already received parameter(s) with this name, so add to the list
         // of parameters with this name
 
         if (is_scalar($parsed_parameters[$parameter])) {