withCredentials can be provided directly in options

[naugtur]

xhr supports withCredentials option for a while now and the docs describing aompersand-sync should not say that you need xhrFields to add withCredentials as a typical case.

(help me find the file and I can PR it)

[pgilad]

For Models:
https://github.com/AmpersandJS/ampersand-model/blob/master/README.md#ajaxconfig-modelajaxconfig-or-modelajaxconfig

For Collections:
https://github.com/AmpersandJS/ampersand-rest-collection#ajaxconfig-ampersandrestcollectionextend-ajaxconfig-function-----

[naugtur]

There's been much more changes since I created this issue...
Thanks for pointing to those.
I see other modules are documented in READMEs so it's probably best to doscument sync in its README first, and then fill in the above.

[pgilad]

Yeah I agree.. Although a lot of the ajaxConfig are similar between any module that relies on &-sync