Use unjs/jiti instead of ts-node

[yusufkandemir]

What would you like?

Use https://github.com/unjs/jiti instead of ts-node to load cypress.config.ts or anything else, if any.

Why is this needed?

The last stable release of ts-node was a year ago: https://github.com/TypeStrong/ts-node/releases/tag/v10.9.2
There seems to be a clear maintenance problem, as can be seen here: TypeStrong/ts-node#2077

As can be seen in #30715, #30318, #30101, and others, TypeScript config loading has been problematic, due to the underlying tool, ts-node.

If Cypress switches to a more modern and maintained tool like unjs/jiti or https://github.com/privatenumber/tsx, most (if not all) problems would be solved. Since the tools are still actively being maintained, as opposed to ts-node, it will be more likely to get fixes for newly popping problems due to updated Node or TS specs.

Other

No response

[MikeMcC399]

@yusufkandemir

• You may like to add your comments to the existing issue [Spike] Investigate migrating off of ts-node #30426

[jennifer-shehane]

Yah we agree, it's been problematic as noted in #30426

[AtofStryker]

We will be replacing ts-node with tsx in Cypress 15 with #31520 which accomplishes this issues end end goal

[AtofStryker]

going to close this issue as it will be resolved with Cypress 15, which is targeted for early July 2025.