fixed cable update

Author: jonasjabari

lib/matestack/ui/vue_js/components/cable.js

@@ -47,7 +47,7 @@ const componentDef = {
       var html = this.formatPayload(payload)
       html.forEach(function(elem){
         var dom_elem = document.createElement('div')
-        dom_elem.innerHTML = elem
+        dom_elem.innerHTML = elem.replace(/^\s+|\s+$/g, '')
         var id = dom_elem.firstChild.id
         var old_elem = self.cableTemplateDomElement.querySelector('#' + id)
         old_elem.parentNode.replaceChild(dom_elem.firstChild, old_elem)