.stack on Errors is claimed to be a Firefox-only API, when it's not

[bzbarsky]

It's in all browsers, and required for web compat. It's just that some browsers make it an instance property, not a prototype property.

[foolip]

Yep, looks like Firefox has Error.prototype.stack but nobody else. I don't see stack in https://tc39.github.io/ecma262/#sec-properties-of-the-error-prototype-object, is this not defined by any spec?

@mdittmer, do we have an umbrella bug for these instance vs. prototype issues?

[bzbarsky]

is this not defined by any spec?

Correct. It's just needed for web compat. ;)

[mdittmer]

We do not have an umbrella bug for instance vs. prototype issues, but we do interpret accessible instances. I think this needs a factory to produce an instance for inspection.

On Thu, Jan 11, 2018 at 8:33 AM, Boris Zbarsky [email protected] wrote:

is this not defined by any spec?

Correct. It's just needed for web compat. ;)

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[bzbarsky]

new Error works fine.