The Polymer Starter Kit contains web-component-tester for unit testing your custom elements. In wct.conf.json you can specify the browsers to run the tests in. { "suites": ["app/tes...

[email protected] install /home/sudthenerd/polymer-starter-kit-1.2.1/node_modules/bufferutil > node-gyp rebuild gyp ERR! configure error gyp ERR! stack Error: Can't find Python executable "/...

The Polymer properties object supports two different keys that I don't quite understand the difference between, reflectToAttribute and notify. reflectToAttribute says that the attribute on the hos...

Here is my polymer form and javascript. It pushes well. What I want to do is check if it was successful, and I will hide the form and show some confirmation text or redirect users to another page.....

I have my element : <dom-module id="x-el"> <p class="special-paragraph">first paragraph</p> <content></content> </dom-module> and I use it like <x-el&gt...

I am trying to use Materialize.css autocomplete with my Polymer project. Console Log: Uncaught TypeError: $(...).autocomplete is not a function My Code: <div class="input-field"> <in...

When a response for a request arrives, is there any way to read the response headers?

I'd like to use polymer in a Python/Flask project. Flask uses the Jinja2 templating engine, which also uses the double curly braces {{}} as delimiters. Escaping braces in Jinja2 is possible, but ...

I'm using Polymer 1.0 and when there is a click on a button in Chrome a MouseEvent is generated. This MouseEvent object has a path property which is an ordered array of parent elements to the click...

So, I've got a simple polymer app with a page listing some users, and a user details page. I'm using firebase-query for the list page, and firebase-document for the details page. I'm using app-r...

I'm doing migration from 0.5 to 1.0. While reading, I notice 2 different way on declaring attributes, using hostAttributes and properties. What are difference between those 2 ?

Is it possible to detect that a user entered a page through using the history back button in his browser? Preferably I want to detect this action using polymer.

I would like to reset a Polymer paper-dropdown-menu to it's initial state in JavaScript so nothing is selected, so it looks like this: I'm able to add an id to the paper-menu tag inside the pape...

I have the following piece of code: <paper-dropdown-menu id="mydropdown" label="City?"> <paper-listbox class="dropdown-content"> <paper-item>Inbox</paper-item> <pape...

I'm using Polymer with Chrome 63.0.3239.108 (updated this morning) and I got some new errors while launching my webapp: [DOM] Found 3 elements with non-unique id #input Here's my code : <div...

I have a polymer node site that I've been working on and can't figure out how to include dynamic meta tags and Open Graph tags. Jquery won't work and neither will using the polymer api to add a nod...

I am using Polymer iron-pages along with paper-tabs in my rails app. The problem is none of pages were shown until one of the paper-tabs was clicked. I want the first page in iron-pages to be selec...

I use Codeship to test my project based on the Polymer starter kit v1.1. When I run npm test inside the test pipeline I see the following error: > @ test /home/rof/src/github.com/TFarla/night-...

I have a polymer 1.x element called input-header and it looks like this <link rel="import" href="../../bower_components/polymer/polymer.html"> <dom-module id="input-header"> <te...

I have a <template is="dom-if" if=... that I want to use with a logical condition. Any binding I try appears to be truthy: <link href="https://polygit.org/components/polymer/polymer.htm...

I am trying to implement context menu using polymer paper menu. Whenever I remove node from dom. polymer is throwing error like this typeError: Failed to execute 'contains' on 'Node': parameter...

Question: How do I automatically execute a function whenever my <paper-dialog> element is closed? Version: Polymer 1.0 Code: <paper-dialog id="paper-id" entry-animation="scale-up-a...

Sup! Back button sometimes doesn't work with my polymer project. When i hit back button the page variable is steel the current page and i need to hit the button twice or three times to get it worki...

I am trying to use an iron-list (and iron-scroll-threshold) within a app-header-layout with has-scrolling-region. I generated the basic app layout with the polymer-CLI. If I do not use has-scrol...

I replaced PageJS routing in our application with app-location and app-route, and everything seems to be working except the query parameters. I noticed it can only read URLs like host?param1=val1#/...