January 2021

• Fixes a crash with Shadow DOM
• Fixes a crash with finding the form submitter in Safari

November 2020

• Supports formmethod to override/change <form method>, so e.g., a button could specifically force formmethod="dialog"
• Handles <form method="dialog"> inside a Shadow Root (no longer submits the form as if it was a GET)
• Fixed TypeScript definitions

August 2020

• Fixes TypeScript definitions file issue. No code changes.

August 2020

• Better support for Shadow DOM
• Forwards mousedown and mouseup events on backdrop

April 2020

• Adds basic support for a dialog inside Shadow DOM.

As the polyfill doesn't insert its own CSS in either SD or regular cases, you'll need to add the CSS to the host.

March 2019

Ships the polyfill as an ES Module.

The NPM-published release now contains both dist/dialog-polyfill.js (as before) and dist/dialog-polyfill.esm.js, which includes export default dialogPolyfill;. See #164 for more information.

This is 0.5.0 because it could break previous users of the 0.4.x branch.

June 2018

• Fixes an issue with IE block scoping of function.

August 2017

• Works around an issue with older browsers not returning or having the descriptor for method on HTMLFormElement. These browsers might not return "dialog" for method on <form method="dialog">

July 2017

• Improved support for <form method="dialog">.
  • The polyfill now has immediate side-effects: it adds support for these types of forms.
• Resolved an issue with .returnValue not being set correctly.
• Fixed a bug while not using MutationObserver.

February 2017

• Resolves a hard lock in IE11.
• Fixes a crash in Firefox.