Ticket #63238: 63238.button-role.diff

src/js/_enqueues/vendor/plupload/handlers.js

@@ -461 +461 @@
                 }
         });
 
+        $( '.upload-flash-bypass a[role="button"], .upload-html-bypass a[role="button"]' ).on( 'keydown.uploader', function( e ) {
+                if ( e.code === 'Space' ) {
+                        $( this ).trigger( 'click' );
+                }
+        });
+
         // Attempt to create image sub-sizes when an image was uploaded successfully
         // but the server responded with an HTTP 5xx error.
         tryAgain = function( up, error ) {

src/wp-admin/includes/media.php

@@ -3048 +3048 @@
                         /* translators: 1: URL to browser uploader, 2: Additional link attributes. */
                         __( 'You are using the multi-file uploader. Problems? Try the <a href="%1$s" %2$s>browser uploader</a> instead.' ),
                         $browser_uploader,
-                        'target="_blank"'
+                        'role="button"'
                 );
         ?>
         </p>
@@ -3061 +3061 @@
  * @since 2.6.0
  */
 function media_upload_html_bypass() {
+        $bypass_message = __( 'You are using the browser&#8217;s built-in file uploader. The WordPress uploader includes multiple file selection and drag and drop capability. <a href="#">Switch to the multi-file uploader</a>.' );
         ?>
         <p class="upload-html-bypass hide-if-no-js">
-                <?php _e( 'You are using the browser&#8217;s built-in file uploader. The WordPress uploader includes multiple file selection and drag and drop capability. <a href="#">Switch to the multi-file uploader</a>.' ); ?>
+                <?php echo str_replace( '<a href="#">', '<a href="#" role="button">', $bypass_message ); ?>
         </p>
         <?php
 }