Ticket #29909: 29909.patch

src/wp-admin/css/common.css

@@ -223 +223 @@
         overflow: hidden;
 }
 
+body.mobile.modal-open #wpwrap {
+        overflow: hidden;
+        height: 100%;
+}
+
 iframe,
 img {
         border: 0;

src/wp-includes/js/wplink.js

@@ -77 +77 @@
                 open: function( editorId ) {
                         var ed;
 
+                        $( document.body ).addClass( 'modal-open' );
+
                         wpLink.range = null;
 
                         if ( editorId ) {
@@ -166 +168 @@
                 },
 
                 close: function() {
+                        $( document.body ).removeClass( 'modal-open' );
+
                         if ( ! wpLink.isMCE() ) {
                                 wpLink.textarea.focus();