Custom Jimp does not work on Cloudflare workers, non custom does work

[treeder]

Expected Behavior

Expect it to work. I feel like it's probably not a big stretch because things work when you don't try to use a custom Jimp.

Current Behavior

If I try to make a custom Jimp with:

    let Jimp = new Jimp({
      formats: [...defaultFormats, webp],
      plugins: defaultPlugins,
    })

I get:

Uncaught ReferenceError: Buffer is not defined.

If I use the default Jimp class like this, then it works fine:

import { Jimp } from "jimp"

Buffer is likely a node specific class that needs to be replaced with a standard JS class.

Steps to Reproduce

Try to make a custom jimp with the code above using the workers SDK.

Context

• Jimp Version: 1.6.0
• Operating System: Linux