Uppy 2.4.0: Webpack fails to compile due to error: "Module parse failed: Identifier directly after number"

[thoiberg]

When using Uppy 2.4.0, webpack fails to compile with the following error:

ERROR in ./node_modules/@uppy/transloadit/lib/index.js 427:21
Module parse failed: Identifier directly after number (427:21)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
|       getAssemblyOptions: defaultGetAssemblyOptions,
|       limit: 20,
>       retryDelays: [7_000, 10_000, 15_000, 20_000]
|     };
|     this.opts = { ...defaultOptions,
ℹ ｢wdm｣: Failed to compile.

This looks to be because of the JS numeric separators, when replacing

uppy/packages/@uppy/transloadit/src/index.js

Line 57 in 0fc3336

retryDelays: [7_000, 10_000, 15_000, 20_000],

with:

retryDelays: [7000, 10000, 15000, 20000]

it compiles properly

Environment

Node: 14.16.1
Wepack: 4.44.1 (through Webpacker 5.2.1
Mac OSX: 11.6.2