Plugin Directory

Test out the new Plugin Directory and let us know what you think.
!This plugin hasn’t been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

42U HTML5 Upgrade

The 42U HTML5 Upgrade prepares your older site for HTML5 and allows you to start using HTML5 structure tags right now.

Who should use this plugin?

Anyone with an older site template that is not written to HTML5 standards.

Is it multisite compatible?

You betcha.

Will this break my current site?

Probably not. We deployed this on over 350 sites that we host and didn't see a single problem.

Will this make old browsers suddenly work with new HTML5 features?

From the modernizr docs:

The library does allow you to use the new HTML5 sectioning elements in IE, but aside from that, it doesn’t modernize any other features. However! Modernizr still pairs extremely well with scripts that do provide support when native browser support is lacking. In general, these scripts are called polyfills. polyfill (n): a JavaScript shim that replicates the standard API for older browsers

That means you can develop for the future, with the real API, and only load your compatibility polyfills on browsers that do not support that API or feature.

And good news for you, there is a polyfill for nearly every HTML5 feature that Modernizr detects. Yup. So in most cases, you can use a HTML5 or CSS3 feature and be able to replicate it in non-supporting browsers. Yes, not only can you use HTML5 today, but you can use it in the past, too!

See https://github.com/Modernizr/Modernizr/wiki/HTML5-Cross-browser-Polyfills for an extensive list of available polyfills.

Requires: 3.0 or higher
Compatible up to: 3.4.2
Last Updated: 4 years ago
Active Installs: 50+


1 out of 5 stars


Got something to say? Need help?


Not enough data

0 people say it works.
0 people say it's broken.