HeroRoller doesn't work embedded in Character Sheets.

Okay, it mostly works. If I put a roll like

!heroll --d:4n

As a "Custom Action" for a Hero System character sheet, it can't figure out who invoked the command and instead relies on the current speaker settings.
For players, this is fine, as they usually only control one character each. But for the GM, this often means the OCV of the last speaker is used, instead of the OCV of the character sheet containing the invocation.
I am very new to both javascript and the Roll20 API or I might have attempted a fix.
Ideally, the best thing would be to be able to autodetect being invoked from a character sheet. Failing that, having an option like:

--as:Heritic

would greatly aid in running games.

[TimRohr22]

I know we discussed this on the API Forum, but for the benefit of others who might see the above request, it is in version 1.2.1, and is discussed here:
https://app.roll20.net/forum/permalink/9956423/

[Anduh]

@swestrup, if this was resolved by v1.2.1, you could close the issue.

Alas, although this USED to work, recent changes to the Roll20 API have broken it again. Currently the --as: option does not work embedded in a character sheet, although it still works in chat.