优化一下

4 years ago · db356a0903
1 changed files with 4 additions and 1 deletions
--- a/src/core/widget.js
+++ b/src/core/widget.js
@ -610,7 +610,10 @@
                if (o.element) {
                    return BI.$(o.element);
                }
-                return BI.$(document.createElement(o.tagName));
+                if (o.tagName) {
+                    return BI.$(document.createElement(o.tagName));
+                }
+                return BI.$(document.createDocumentFragment());
            }
            return BI.$(widget);
        },