[Fix] no-unknown-property: allow allowFullScreen on iframe

Fixes #3456.

Author: almeidx

CHANGELOG.md

@@ -10,6 +10,10 @@ This change log adheres to standards from [Keep a CHANGELOG](https://keepachange
 * [`hook-use-state`]: add `allowDestructuredState` option ([#3449][] @ljharb)
 * add [`sort-default-props`] and deprecate [`jsx-sort-default-props`] ([#1861][] @alexzherdev)
 
+### Fixed
+* [`no-unknown-property`]: allow `allowFullScreen` on `iframe` ([#3455][] @almeidx)
+
+[#3455]: https://github.com/jsx-eslint/eslint-plugin-react/pull/3455
 [#3449]: https://github.com/jsx-eslint/eslint-plugin-react/pull/3449
 [#3424]: https://github.com/jsx-eslint/eslint-plugin-react/pull/3429
 [#1861]: https://github.com/jsx-eslint/eslint-plugin-react/pull/1861

lib/rules/no-unknown-property.js

@@ -104,9 +104,9 @@ const ATTRIBUTE_TAGS_MAP = {
   loop: ['audio', 'video'],
   muted: ['audio', 'video'],
   playsInline: ['video'],
-  allowFullScreen: ['video'],
-  webkitAllowFullScreen: ['video'],
-  mozAllowFullScreen: ['video'],
+  allowFullScreen: ['iframe', 'video'],
+  webkitAllowFullScreen: ['iframe', 'video'],
+  mozAllowFullScreen: ['iframe', 'video'],
   poster: ['video'],
   preload: ['audio', 'video'],
   scrolling: ['iframe'],

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

@@ -70,6 +70,7 @@ ruleTester.run('no-unknown-property', rule, {
     { code: '<link rel="preload" as="image" href="someHref" imageSrcSet="someImageSrcSet" imageSizes="someImageSizes" />' },
     { code: '<object onLoad={bar} />' },
     { code: '<video allowFullScreen webkitAllowFullScreen mozAllowFullScreen />' },
+    { code: '<iframe allowFullScreen webkitAllowFullScreen mozAllowFullScreen />' },
     { code: '<table border="1" />' },
     { code: '<th abbr="abbr" />' },
     { code: '<td abbr="abbr" />' },
@@ -513,7 +514,7 @@ ruleTester.run('no-unknown-property', rule, {
           data: {
             name: 'allowFullScreen',
             tagName: 'div',
-            allowedTags: 'video',
+            allowedTags: 'iframe, video',
           },
         },
       ],