vaadin-cookie-consent | Vaadin

Cookie Consent Banner as a Web Component

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Live Demo ↗ | API documentation ↗

<vaadin-cookie-consent> is a web component used for showing a cookie consent banner the first time a user visits the application. Cookie Consent is part of the Vaadin components.

Getting Started

Install Vaadin Cookie Consent in your project

$ bower install --save vaadin/vaadin-cookie-consent

Import Vaadin Cookie Consent

Add html import

<link rel="import" href="../../bower_components/vaadin-cookie-consent/vaadin-cookie-consent.html">

Use Vaadin Cookie Consent

Create your first Vaadin Cookie Consent


Install License Key

After one day using Vaadin Cookie Consent in a development environment you will see a pop-up that asks you to enter the license key. You can get your trial key from If the license is valid, it will be saved to the local storage of the browser and you will not see the pop-up again.

Customizing Vaadin Cookie Consent

  message="We are using cookies to make your visit here awesome!"

Screenshot of vaadin-cookie-consent

The file structure for Vaadin components

Vaadin components use the Lumo theme by default.

  • src/vaadin-cookie-consent.html

    Unstyled component.

  • theme/lumo/vaadin-cookie-consent.html

    Component with Lumo theme.

  • vaadin-cookie-consent.html

    Alias for theme/lumo/vaadin-cookie-consent.html

Running demos and tests in browser

  1. Fork the vaadin-cookie-consent repository and clone it locally.

  2. Make sure you have npm installed.

  3. When in the vaadin-cookie-consent directory, run npm install and then bower install to install dependencies.

  4. Make sure you have polymer-cli installed globally: npm i -g polymer-cli.

  5. Run polymer serve --open, browser will automatically open the component API documentation.

  6. You can also open demo or in-browser tests by adding demo or test to the URL, for example:

Running tests from the command line

  1. When in the vaadin-cookie-consent directory, run polymer test

Big Thanks

Cross-browser Testing Platform and Open Source <3 Provided by Sauce Labs.

Following the coding style

We are using ESLint for linting JavaScript code. You can check if your code is following our standards by running gulp lint, which will automatically lint all .js files as well as JavaScript snippets inside .html files.


To contribute to the component, please read the guideline first.


Commercial Vaadin Add-on License version 3 (CVALv3). For license terms, see LICENSE.

Vaadin collects development time usage statistics to improve this product. For details and to opt-out, see


Link to this version
ImportedReleased 03 May 2019Other
Framework Support
Polymer 2.0+
Polymer 3.0+
Browser Independent
Install with
npm install @vaadin/vaadin-cookie-consent"@1.1.1"
Run the above npm command in your project folder. If you have any issues installing, please contact the author.
Release notes - Version 1.1.1


  • cookieconsent#^3.0.6
  • @polymer/polymer#^3.0.0
  • @vaadin/vaadin-themable-mixin#^1.2.0
  • @vaadin/vaadin-element-mixin#^2.0.0
  • @vaadin/vaadin-lumo-styles#^1.1.0
  • @vaadin/vaadin-material-styles#^1.1.0
  • @vaadin/vaadin-license-checker#^2.1.0