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v1 polyfill can be slower than v0 in Edge and IE11 · Issue #951 · webcomponents/webcomponentsjs · GitHub
![internet explorer - Web Components, HTML Imports polyfills not working in Firefox, IE - Stack Overflow internet explorer - Web Components, HTML Imports polyfills not working in Firefox, IE - Stack Overflow](https://i.stack.imgur.com/gG7Lb.png)
internet explorer - Web Components, HTML Imports polyfills not working in Firefox, IE - Stack Overflow
GitHub - AshleyScirra/html-imports-polyfill: Quick and dirty polyfill for HTML imports, used by Construct 3.
![Template polyfill seems to empty the template element content · Issue #47 · webcomponents/template · GitHub Template polyfill seems to empty the template element content · Issue #47 · webcomponents/template · GitHub](https://user-images.githubusercontent.com/14863500/41933022-8cfc8790-7937-11e8-8ed8-2c91f8b4e51e.png)
Template polyfill seems to empty the template element content · Issue #47 · webcomponents/template · GitHub
![Differential serving vs. polyfill service: How to best serve modern and legacy browsers | by Dong Chen | Medium Differential serving vs. polyfill service: How to best serve modern and legacy browsers | by Dong Chen | Medium](https://miro.medium.com/v2/resize:fit:1400/1*0QPjWi-YEJw6Czg7NHIonQ.png)