- ```_v```: backend version (protocol id https://wiki.vg/Protocol_version_numbers or name with underline instead of dots). Current default is 1.8, may change to auto detection in the future
- ```_o```: ```t``` to force online mode in frontend, ```f``` to disable online mode in frontend. If not set, it will be based on backend online mode.
- You can use two accounts (avoids Bad Login error), the same account for front-end and back-end connections or use ```_ofalse``` (offline mode in frontend, not encrypted).
- You should set up a CORS Proxy (something like https://www.npmjs.com/package/cors-anywhere, ```git clone https://github.com/Rob--W/cors-anywhere && cd cors-anywhere && npm install && node server.js```)
on the machine you are using the VIAaaS authenticator webpage. You can use my CORS Anywhere instance https://crp123-cors.herokuapp.com/ when using
https://viaversion.github.io/VIAaaS/ but Mojang may look it as suspect.
- Add the account B you'll use in ```_u``` parameter to browser auth page.
- Connect to ```mc.example.com._v1_8._u(account B).viaaas.localhost``` (```_u(account B)``` parameter can be removed if you are using the same account)