structuredClone does not work on process.env

[cruiseliu]

Version

v19.0.1

Platform

Linux x 6.0.7-arch1-1 #1 SMP PREEMPT_DYNAMIC Thu, 03 Nov 2022 18:01:58 +0000 x86_64 GNU/Linux

Subsystem

No response

What steps will reproduce the bug?

No response

How often does it reproduce? Is there a required condition?

No response

What is the expected behavior?

No response

What do you see instead?

> structuredClone(process.env)
Uncaught:
DOMException [DataCloneError]: Cannot transfer object of unsupported type.
    at new DOMException (node:internal/per_context/domexception:53:5)
    at structuredClone (node:internal/structured_clone:23:17)

Additional information

No response

[bnoordhuis]

I'm not sure this is fixable. If it is, it probably involves teaching WriteHostObject() in src/node_messaging.cc about process.env through a v8::ObjectTemplate::HasInstance() check.

The template is created in CreateEnvVarProxy() in src/node_env_var.cc. It should be stored on the Environment so WriteHostObject() can access it as env_->env_proxy_template().

[MrJithil]

need help on this as its involved c++

[bnoordhuis]

#45698