javascript - Polymer 1.0 and Django : Uncaught ReferenceError: KeyframeEffect is not defined -


so have been trying out polymer 1.0 django & snapdragon. able render elements stuck @ animations. code pretty same code demo provided google neo animations. trying out declarative demo. when serve code using

  ./manage.py run serve 

i able see elements stops working when click on giving error

uncaught referenceerror: keyframeeffect

is not defined. breaks @

polymer.configure   @   opaque-animation.html:33 

so looked @ file , piece of code throws error

  this._effect = new keyframeeffect(node, [     {'opacity': '1'},     {'opacity': '1'}   ] 

i noticed "opacity" of second neo-animitable element stuck @ 0 , not change 1 causing not show. sure paths script files , imports right in index.html. following code index.html

{% load static swampdragon_tags %} <!doctype html> <html> <head>    <title>test</title>     <meta charset="utf-8">    <meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">    <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1, user-scalable=yes">     <script src="{% static 'bower_components/webcomponentsjs/webcomponents-lite.js' %}"></script>     <link rel="import" href="{% static 'bower_components/paper-styles/paper-styles.html' %}">     <link rel="import" href="{% static 'bower_components/neon-animation/neon-animated-pages.html' %}">    <link rel="import" href="{% static 'bower_components/neon-animation/neon-animatable.html' %}">    <link rel="import" href="{% static 'bower_components/neon-animation/neon-animations.html' %}">     <style>         body {            overflow: hidden;         }      </style>     <style is="custom-style">        neon-animatable {          color: white;          @apply(--layout-horizontal);          @apply(--layout-center-center);          @apply(--paper-font-display4);       }        neon-animatable:nth-child(1) {         background: var(--paper-red-500);       }        neon-animatable:nth-child(2) {         background: var(--paper-blue-500);       }        neon-animatable:nth-child(3) {         background: var(--paper-orange-500);       }       neon-animatable:nth-child(4) {        background: var(--paper-green-500);      }       neon-animatable:nth-child(5) {        background: var(--paper-purple-500);      }     </style> </head> <body class="fullbleed layout vertical">      {% verbatim %}      <template is="dom-bind">          <div class="toolbar">            <button on-click="_onprevclick">&lt;&lt;</button>            <button on-click="_onnextclick">&gt;&gt;</button>         </div>          <neon-animated-pages id="pages" class="flex" selected="[[selected]]" entry-animation="[[entryanimation]]" exit-animation="[[exitanimation]]">              <neon-animatable>1</neon-animatable>             <neon-animatable>2</neon-animatable>             <neon-animatable>3</neon-animatable>             <neon-animatable>4</neon-animatable>             <neon-animatable>5</neon-animatable>         </neon-animated-pages>     </template>     <script>         var scope = document.queryselector('template[is="dom-bind"]');        scope.selected = 0;         scope._onprevclick = function() {           this.entryanimation = 'slide-from-left-animation';           this.exitanimation = 'slide-right-animation';           this.selected = this.selected === 0 ? 4 : (this.selected - 1);         }         scope._onnextclick = function() {           this.entryanimation = 'slide-from-right-animation';           this.exitanimation = 'slide-left-animation';           this.selected = this.selected ===  4 ? 0 : (this.selected + 1);        }     </script>     {% endverbatim %}   </body> </html> 

after spending lot of time on trying figure out problem stuck. appreciated! thanks!

so easy fix @ end. did 1. reinstalled polymer components. 2. put {% endverbatim %} tag before script tag instead of after .


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