don't call bound function, or check for number, on blur if there is only whitespace

Author: sspickle

lib/glow/primitives.js

@@ -2927,6 +2927,9 @@
 			})
 			.blur(function(k) {
 				attrs.text = attrs.jwinput.val()
+				if (attrs.text.trim().length === 0) {
+					return // bail if the text field has only whitespace
+				}
 				var ok = wparse()
 				if (!ok) {
 					alert('Numeric input error')