diff --git a/src/wp-includes/js/mce-view.js b/src/wp-includes/js/mce-view.js
index 9c8b9512b4..4309b0b6e2 100644
--- a/src/wp-includes/js/mce-view.js
+++ b/src/wp-includes/js/mce-view.js
@@ -127,53 +127,57 @@ window.wp = window.wp || {};
content.innerHTML = '';
- iframe = dom.add( content, 'iframe', {
- src: tinymce.Env.ie ? 'javascript:""' : '',
- frameBorder: '0',
- allowTransparency: 'true',
- scrolling: 'no',
- 'class': 'wpview-sandbox',
- style: {
- width: '100%',
- display: 'block'
- }
- } );
-
- iframeDoc = iframe.contentWindow.document;
-
- iframeDoc.open();
- iframeDoc.write(
- '' +
- '' +
- '' +
- '' +
- '' +
- '' +
- html +
- '' +
- ''
- );
- iframeDoc.close();
-
- resize = function() {
- // Make sure the iframe still exists.
- iframe.contentWindow && $( iframe ).height( $( iframeDoc.body ).height() );
- };
-
- if ( MutationObserver ) {
- new MutationObserver( _.debounce( function() {
- resize();
- }, 100 ) )
- .observe( iframeDoc.body, {
- attributes: true,
- childList: true,
- subtree: true
+ // Seems Firefox needs a bit of time to insert/set the view nodes, or the iframe will fail
+ // especially when switching Text => Visual.
+ setTimeout( function() {
+ iframe = dom.add( content, 'iframe', {
+ src: tinymce.Env.ie ? 'javascript:""' : '',
+ frameBorder: '0',
+ allowTransparency: 'true',
+ scrolling: 'no',
+ 'class': 'wpview-sandbox',
+ style: {
+ width: '100%',
+ display: 'block'
+ }
} );
- } else {
- for ( i = 1; i < 6; i++ ) {
- setTimeout( resize, i * 700 );
+
+ iframeDoc = iframe.contentWindow.document;
+
+ iframeDoc.open();
+ iframeDoc.write(
+ '' +
+ '' +
+ '' +
+ '' +
+ '' +
+ '' +
+ html +
+ '' +
+ ''
+ );
+ iframeDoc.close();
+
+ resize = function() {
+ // Make sure the iframe still exists.
+ iframe.contentWindow && $( iframe ).height( $( iframeDoc.body ).height() );
+ };
+
+ if ( MutationObserver ) {
+ new MutationObserver( _.debounce( function() {
+ resize();
+ }, 100 ) )
+ .observe( iframeDoc.body, {
+ attributes: true,
+ childList: true,
+ subtree: true
+ } );
+ } else {
+ for ( i = 1; i < 6; i++ ) {
+ setTimeout( resize, i * 700 );
+ }
}
- }
+ }, 50 );
});
} else {
this.setContent( html );