diff --git a/packages/readabilityjs/Readability.js b/packages/readabilityjs/Readability.js
index 44b698bc6..fb4eeefe9 100644
--- a/packages/readabilityjs/Readability.js
+++ b/packages/readabilityjs/Readability.js
@@ -1917,7 +1917,7 @@ Readability.prototype = {
     var metaElements = this._doc.getElementsByTagName("meta");
 
     // property is a space-separated list of values
-    var propertyPattern = /\s*(dc|dcterm|og|twitter|article)\s*:\s*(locale|author|creator|description|title|site_name|published_time|published|date|image)\s*/gi;
+    var propertyPattern = /^\s*(dc|dcterm|og|twitter|article)\s*:\s*(locale|author|creator|description|title|site_name|published_time|published|date|image)\s*$/gi;
 
     // name is a single value
     var namePattern = /^\s*(?:(dc|dcterm|og|twitter|weibo:(article|webpage))\s*[\.:]\s*)?(author|creator|description|title|site_name|date|image)\s*$/i;
@@ -2056,7 +2056,7 @@ Readability.prototype = {
       values["og:image"] ||
       values["weibo:article:image"] ||
       values["weibo:webpage:image"] || 
-      jsonld.previewImage
+      jsonld.previewImage;
 
     metadata.locale = values["og:locale"];