plugins/legacy_browser/js/iehacks.js
@@ -102,7 +102,7 @@ rcube_webmail.prototype.async_upload_form_frame = function(name) { document.body.insertAdjacentHTML('BeforeEnd', '<iframe name="' + name + '"' + ' src="program/resources/blank.gif" style="width:0; height:0; visibility:hidden"></iframe>'); + ' src="' + rcmail.assets_path('program/resources/blank.gif') + '" style="width:0; height:0; visibility:hidden"></iframe>'); return $('iframe[name="' + name + '"]'); };