Added the missing tagName, link, to support the crossOrigin property.

Author: Johnny Zarate

lib/rules/no-unknown-property.js

@@ -25,7 +25,7 @@ const DOM_ATTRIBUTE_NAMES = {
 };
 
 const ATTRIBUTE_TAGS_MAP = {
-  crossOrigin: ['script', 'img', 'video']
+  crossOrigin: ['script', 'img', 'video', 'link']
 };
 
 const SVGDOM_ATTRIBUTE_NAMES = {

tests/lib/rules/no-unknown-property.js

@@ -82,6 +82,6 @@ ruleTester.run('no-unknown-property', rule, {
     errors: [{message: 'Unknown property \'clip-path\' found, use \'clipPath\' instead'}]
   }, {
     code: '<div crossOrigin />',
-    errors: [{message: 'Invalid property \'crossOrigin\' found on tag \'div\', but it is only allowed on: script, img, video'}]
+    errors: [{message: 'Invalid property \'crossOrigin\' found on tag \'div\', but it is only allowed on: script, img, video, link'}]
   }]
 });