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Browser support

All modern browsers are supported out-of-the-box, including IE11 (Internet Explorer's oldest supported version as of 2016). Legacy IE support (IE9) is available using polyfills.

API used

Remount supports 2 modes of operations: Custom Elements and Mutation Observers. It will pick whichever is available. These two API's are supported in these browser versions:

Feature IE Chrome Firefox iOS
Custom elements - 67+ (2018) -
Mutation observers 11+ (2013) 18+ (2012) 14+ (2012) 6.1+ (2013)

Legacy IE support

To support IE9, add the MutationObserver polyfill for legacy IE support. Here are two ways to include it (my preference is for the first one):

  • via Jsdelivr CDN (source):

    <script>if(!window.MutationObserver){document.write('<script src="https://cdn.jsdelivr.net/g/mutationobserver/"></scr'+'ipt>')}</script>

  • Via polyfill.io:

    <script src="https://cdn.polyfill.io/v2/polyfill.js?features=MutationObserver" />