Support the new Japanese era (Reiwa)

[CYBAI]

URL: https://reiwa-yet.glitch.me/

Bugzilla for Firefox: https://bugzilla.mozilla.org/show_bug.cgi?id=1543641

In Firefox Nightly:

In Servo

[KiChjang]

This looks like a JavaScript engine issue rather than a browser issue, since Intl.DatTimeFormat is defined in https://www.ecma-international.org/ecma-402/2.0/#sec-intl-datetimeformat-constructor. Closing as this can be supported by simply upgrading to the latest SM version.

[jdm]

Let's leave it open to track the fact that it's broken until we upgrade to a version that fixes it.

[CYBAI]

@KiChjang Thanks for pointing it! What @jdm said is what I think :)

[saschanaz]

Seems this is fixed.

[jdm]

Not in the latest macOS nightly build that I tried.

[saschanaz]

Oops, I tried this on Windows and it says Yes. (Does it depend on OS?)

[atouchet]

I tried it on Windows and it says Yes for me as well briefly before the page crashes in the latest nightly build.

[saschanaz]

@atouchet Same here, it's #23531.

[atouchet]

I can get this page to load without crashing now.

@jdm are you using a release with the latest SpiderMonkey updates?

[CYBAI]

Works for me on macOS 10.14.5 too!

I supposed it's fixed by smup at #23587 👀
Wait for @jdm 's confirmation to close this issue! 😄

[CYBAI]

I just tried to go through the bugzilla and the comment 23 said it's fixed for version 67 and our #23587 was for smup 67.

So, I believe it's fixed for Servo as well! Let me close this issue then 😄 Thanks!