Customize passwords processing before sending request

### Feature request : Customize passwords processing before sending request

**I'm submitting a ...**

* [ ] bug report
* [ X] feature request
* [ ] question about the decisions made in the repository

### Issue description
**Current behavior:**
The password is visible in the calls

**Expected behavior:**
Add an method (config params ?) for customize password before send request (Hash, Salt etc....)

**Steps to reproduce:**
It is not advisable to transit and store the password in clear. See console network logs