v.3.1.0

This version adds a newrenderWrapperModule configuration option. Use this to wrap all your components in things like theme providers, store providers, etc. See https://github.com/happo/happo.io#renderwrappermodule

v3.0.1

This version makes it possible to use dynamic imports. E.g.

await foo = import('foo');

v3.0.0

Breaking changes:

• The getRootElement has been changed to rootElementSelector, and accepts a string instead of a function. To migrate, change

getRootElement(document) {
    return document.querySelector('.react-live-preview');
},

to

{
  rootElementSelector: '.react-live-preview',
}

New features:

• Added ability to replace JSDOM to prerender examples. The first one to make use of this is happo-plugin-puppeteer.

Bugfixes:

• Add happo empty call to support uploading an empty report for a specific sha. This is used when happo-ci is run on a project the first time, to make sure that there's a baseline (empty) report to compare with.
• The check to see if happo is run for the first time has been updated to use npm ls/yarn list instead of checking for the happo binary (which didn't work in some scenarios).

v2.2.4

This version fixes a bug causing projects using Typescript to have very long component names.

v2.2.2

Fixes a bug where lockfiles might get modified during a happo run in CI.

v2.2.1

Fixes preloading images found in srcset attributes.

v2.2.0

New in this release:

• customizeWebpackConfig can now return a promise, to allow for asynchronously constructing the result.
• new jsdomOptions config, to allow for configuring the underlying JSDOM instance.
• plugins can now specify their own publicFolders

v2.1.1

Fixes a bug where certain webpack build errors would be swallowed and surfaced as "Could not load script" instead of showing the build failure.

Also makes it possible to use happo.io with @babel/preset-react for Babel 7. Before, happo would fail trying to use babel-preset-react (which is only compatible with babel <6).

v2.1.0

Changes:

• New configuration option, tmpdir, allows you to control where happo creates its webpack bundles. This can be useful when debugging things.

v2.0.0

Breaking changes:

• webpack is now a peer dependency, and we allow both webpack v3 or v4 to be used. If you're upgrading to happo.io v2 from v1, you need to make sure webpack is in the list of dependencies for your project.

Enhancements:

• Happo plugins are born, the first one being happo-plugin-storybook that can be used to turn storybook examples into happo examples.

Bug fixes:

• In React projects, components are now unmounted after being rendered. This fixes memory issues we've seen in larger projects.