fixes #51401

What?

This will resolve the issue where unstable_allowDynamic in 14.2.x does not meet expectations on Windows most of the time.

Why?

This is because #60699 changed the implementation of isDynamicCodeEvaluationAllowed from micromatch.isMatch() to picomatch().

Although the code appears identical, micromatch internally relies on picomatch version 2.3.1, while the modified next.js depends on picomatch version 4.0.2.

During the major version changes, an important modification micromatch/picomatch#73 was made, which sometimes no longer automatically sets opts.windows, causing the path matching regex to be incorrect on Windows.

As shown below:

const picomatch4 = require('picomatch')
const picomatch2 = require('micromatch/node_modules/picomatch')

console.log(picomatch4('/node_modules/.pnpm/**', undefined, true).state.output)
// \/node_modules\/\.pnpm(?:\/(?!\.)(?:(?:(?!(?:^|\/)\.).)*?)|$)
console.log(picomatch2('/node_modules/.pnpm/**', undefined, true).state.output)
// [\\/]node_modules[\\/]\.pnpm(?:[\\/](?!\.)(?:(?:(?!(?:^|[\\/])\.).)*?)|$)

console.log(picomatch4('/node_modules/.pnpm/**', {}, true).state.output)
// [\\/]node_modules[\\/]\.pnpm(?:[\\/](?!\.)(?:(?:(?!(?:^|[\\/])\.).)*?)|$)
console.log(picomatch2('/node_modules/.pnpm/**', {}, true).state.output)
// [\\/]node_modules[\\/]\.pnpm(?:[\\/](?!\.)(?:(?:(?!(?:^|[\\/])\.).)*?)|$)

How?

Alternatively, this library later added a feature to automatically set the windows option when creating a matcher https://github.com/micromatch/picomatch/blob/570df2f8781bc92e5fece2c16d9ff990c4a8d1da/index.js#L10.

So we can either manually pass opts.windows or pass empty opts to trigger the automatic setting.