Filing this for tracking as discussed in the 3.1.1 review meeting. As mentioned, it is not a 3.1.0 bug. It occurs in development master.

The lang pack loading support seems to have changed, going from build yui3-2028 to yui3-2029 (yui3-2028 works, yui3-2029 doesn't)

The last section of the datatype_dateformat_lang.html example no longer pulls down new language packs

-- From the related email thread --

On April 9, 2010 2:12:14 PM PDT, Satyen Desai wrote:

Stepping through things, it seems like loader calculations are fine.

It's just failing to get to the Y.Get.script part, to lay the script tag down, because of the following check in loadNext()...

m = this.getModule(s[i]);

if (!m) {
msg = "Undefined module " + s[i] + " skipped";
Y.log(msg, 'warn', 'loader');
this.inserted[s[i]] = true;
this.skipped[s[i]] = true;
continue;
}

s[i] is "lang/datatype-date_zh-Hant-TW" for example, but m ends up being undefined.

There's an entry for "lang/datatype-date-format_zh-Hant-TW" but not for "lang/datatype-date_zh-Hant-TW".

---