Support IE 8

angular-formly supports all of the latest browsers and works with IE8 (thanks koenweyn)! To make formly functional in IE8, formly already adds the dashed version of all of its directives as custom tags.

You must also add polyfills for a number of ES5 functions: String.prototype.trim, Array.isArray, Array.prototype.map, Array.prototype.filter, Array.prototype.some, Array.prototype.every, Array.prototype.indexOf, Array.prototype.forEach, Object.keys, Object.getPrototypeOf (or simply use the excellent es5-shim)

Also, you must change the root element of the <formly-form> tag (because IE8 cannot cope with custom tags in a replace directive):

<formly-form root-el="form"></formly-form>

or, if you want to support nesting of forms, use:

<div ng-form>
  <formly-form root-el="div"></formly-form>
</div>

📘

Wrap formly-form

It's a good idea to wrap your dependencies in your own abstraction. It makes life so much easier for you, especially if you're going to be doing this with all of your fields. Create your own directive that uses formly-form and adds the root-el attribute. I recommend you do this whether you need to support IE 8 or not.