admin-ajax.php imgedit-preview header problem ( v2 / WP3.7 )

I use the “Post thumbnail Editor” , but the page for select area for the thumbnail did not show the main image.

There is one year @hugofcampos had found a solution , but the post is closed to replies.

Well, with WP 3.7, I had the same problem, so I found a similar solution ( not the same file, nor function )

Hope that help :

class-wp-image-editor-gd.php line 396

I added while (@ob_end_clean()); in the stream function.

public function stream( $mime_type = null ) {
		list( $filename, $extension, $mime_type ) = $this->get_output_format( null, $mime_type );

		while (@ob_end_clean());

		switch ( $mime_type ) {
			case 'image/png':
				header( 'Content-Type: image/png' );
				return imagepng( $this->image );
			case 'image/gif':
				header( 'Content-Type: image/gif' );
				return imagegif( $this->image );
			default:
				header( 'Content-Type: image/jpeg' );
				return imagejpeg( $this->image, null, $this->quality );
		}
	}