use single runtime chunk will cause error

[Austaras]

set webpack config

optimization: {
    runtimeChunk: 'single',
}

will cause
ERROR in TypeError: Cannot read property 'options' of undefined

[Austaras]

This is not fixed, it will cause vendor.js loaded in both preset. @DanielSchaffer can you reopen this?

[DanielSchaffer]

In this scenario, does the vendor.js have mixed ES levels? It might be possible that if the stuff that gets put into the vendor chunk is already ES5 / "legacy" compatible, it could just use that for both bundles.

[Austaras]

No. I tested it with typescript-plain which should generate a vendor.js with only core-js and regenerator-runtime, it should never be loaded in modern target