up.framework.isSupported()

Returns whether Unpoly can boot in the current browser.

If this returns false Unpoly will not automatically boot and will not compile the initial page. This leaves you with a server-side web application without any JavaScript enhancements.

The support check is very cursory. While it will exclude most legacy browsers like Internet Explorer, there may be cases where up.framework.isSupported() returns true on a browser with other support issues. To use your own conditions for browser support, boot manually.

Browser support

Unpoly aims to support all modern browsers.

Chrome, Firefox, Microsoft Edge

Unpoly supports recent versions of these evergreen browsers.

Safari, Mobile Safari

Unpoly supports the last two major versions of Safari.

Internet Explorer

Internet Explorer 11 or lower is no longer supported.

If you need to support Internet Explorer 11, use Unpoly 2.