Restore tests and crossorigin attribute map

Author: ljharb

lib/rules/no-unknown-property.js

@@ -21,7 +21,8 @@ const DOM_ATTRIBUTE_NAMES = {
   'accept-charset': 'acceptCharset',
   class: 'className',
   for: 'htmlFor',
-  'http-equiv': 'httpEquiv'
+  'http-equiv': 'httpEquiv',
+  crossorigin: 'crossOrigin'
 };
 
 const ATTRIBUTE_TAGS_MAP = {

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

@@ -80,6 +80,12 @@ ruleTester.run('no-unknown-property', rule, {
     code: '<rect clip-path="bar" />;',
     output: '<rect clipPath="bar" />;',
     errors: [{message: 'Unknown property \'clip-path\' found, use \'clipPath\' instead'}]
+  }, {
+    code: '<script crossorigin />',
+    errors: [{message: 'Unknown property \'crossorigin\' found, use \'crossOrigin\' instead'}]
+  }, {
+    code: '<div crossorigin />',
+    errors: [{message: 'Unknown property \'crossorigin\' found, use \'crossOrigin\' instead'}]
   }, {
     code: '<div crossOrigin />',
     errors: [{message: 'Invalid property \'crossOrigin\' found on tag \'div\', but it is only allowed on: script, img, video, link'}]