IE 11 support?

[brownieboy]

I couldn't get it to work at all with IE 11. Is it supported? (The readme does say "all browsers", and IE 11 is still supported.)

[lazyhero]

same question

[jdhollander]

Having tried the demos in IE11, it doesn't work.

I get an exception "Object doesn't support this action". In the source it's at src/index.ts line 11:
load(new URL(scr.getAttribute('data-main'), document.baseURI));

IE doesn't support the URL constructor. https://developer.mozilla.org/en-US/docs/Web/API/URL/URL

[webschik]

There are several problems:

1. Fetch API, URL, Promise are not supported in IE 11. So, to run the demos/static-imports locally I've injected there

<script src="https://cdn.polyfill.io/v2/polyfill.js?features=default,fetch"></script>

2. Transform produces unsupported code (e.g. template strings).

Check the demo demos/static-imports and shimport/src/load.ts:27.

// transform(text, url) returns

__shimport__.define('http://localhost:5000/static-imports/main.js', ['./a.js', './b.js'], function(__import, __exports, a, __dep_1){

a = a.default; 
/*import a from './a.js'*/;
var message = __dep_1.message;
/*import { message } from './b.js'*/;

document.body.innerHTML += `\n\t<p>${a}</p>\n\t<p>${message}</p>\n`;
});
//# sourceURL=http://localhost:5000/static-imports/main.js"

@Rich-Harris, what do you think? Should we fix the transform function or it's better to use transform + Babel?

Solution to run the demo/static-imports in IE 11

1. Inject polyfills to demos/static-imports/index.html:

<script src="https://cdn.polyfill.io/v2/polyfill.js?features=default,fetch"></script>

2. Remove template strings from demos/static-imports/main.js:

import a from './a.js';
import { message } from './b.js';

document.body.innerHTML += '<p>' + a + '</p><p>' + message + '</p>';

[Rich-Harris]

Yeah, it's a bring-your-own-polyfill deal, and you would need to be serving modules that have been transpiled to ES5 (apart from import/export). As long as you're doing that, it works great in IE11. I'll make this clearer in the docs when I'm less busy

[dimensi]

@Rich-Harris any news ?

[Conduitry]

The readme now has a note about what exactly this library does for you and what it needs to do that.