[FIX] Widget: correctly check if rendered template is empty

bzr revid: fme@openerp.com-20120222161324-fut6gawp70qff0ev

1 files changed, 1 insertions, 1 deletions

diff --git a/addons/web/static/src/js/core.js b/addons/web/static/src/js/core.js
index 086f7f3b56a..b394570b72d 100644
--- a/addons/web/static/src/js/core.js
+++ b/addons/web/static/src/js/core.js
@@ -1086,7 +1086,7 @@ openerp.web.Widget = openerp.web.CallbackEnabled.extend(/** @lends openerp.web.W
         var rendered = null;
         if (this.template)
             rendered = openerp.web.qweb.render(this.template, {widget: this});
-        if (rendered) {
+        if (_.str.trim(rendered)) {
             var elem = $(rendered);
             this.$element.replaceWith(elem);
             this.$element = elem;