I know requiring javascript on a webpage has been a hot topic the last couple years.

I'm wondering if someone wanted to use custom elements but still allow the website to be usable without javascript how would they do that?

Would they have to add a <noscript> with regular elements? or is there some way for browsers to know what to fall back to if a custom element is used but javascript isn't enabled?

  • What are you trying to accomplish? Are you trying to figure out what happens to your tags with JavaScript disabled?
    – svidgen
    Oct 26, 2016 at 23:34
  • I'm wondering what the best practice would be for someone who wants to use the new web components standard and still provide a usable experience for people who don't want to use javascript
    – Tony Brix
    Oct 27, 2016 at 4:14
  • The answer to most questions along the line “I want to do fancy stuff with JS but only as progressive enhancement” is “server-side rendering”.
    – amon
    Oct 27, 2016 at 8:22
  • 1
    This question should be asked at stackoverflow.com Jun 9, 2017 at 14:57
  • 1
    @TheCatWhisperer The top two tags on this site are "java" and "c#" I can almost guarantee none of those questions are language agnostic. Is there somewhere on this site that explains what a good/bad question for this site is?
    – Tony Brix
    Jun 14, 2017 at 21:31

1 Answer 1


Unfortunately, custom elements were not designed to be created with html-only syntax1. They were created with the idea to change the DOM on the fly and add your own elements by javascript only.

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