Mithril.js: Update from 2.0.0-rc.4 to 2.0.4 braking change?

[mke21]

Don't know if it is a bug or my fault, but I don't know where to get help.
I started a project in spring on the then available mithril 2.0.0-rc.4 version. I finally got around to work on it again and naturally updated to the latest 2.0.4 version.

OS: Manjaro Linux
Browser Firefox and Chromium

In a nutshell: the following example code works fine on mithril-2.0.0-rc.4, of course my project is much bigger:

var m = require("mithril").default;
m.render(document.body, "Hello world");

After upgrading to mithril 2.0.4, this does still build, but does not render anymore, giving the error:

TypeError: m is undefinedapp.js line 416 > eval:3:1
    <anonymous> index.js:3
    js app.js:416
    __webpack_require__ app.js:20
    <anonymous> app.js:84
    <anonymous> app.js:87

[fuzetsu]

You no longer need the .default in the require.

2.0.0-rc.4 was the last mithril version to ship an ES module build, webpack was using it and that's why .default was required. To fix this issue the ESM build was removed.

[isiahmeadows]

We reverted the ESM change in subsequent release candidates as it was
breaking others - use it as you would have in v1, without the .default.

On Thu, Nov 14, 2019 at 15:19 mke21 [e-mail] wrote:

Assigned #2549 https://github.com/MithrilJS/mithril.js/issues/2549 to
@isiahmeadows https://github.com/isiahmeadows.

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Isiah Meadows
[email protected]
www.isiahmeadows.com

[mke21]

Thanks, guys, you saved me.