At the moment it is not possible. Nevertheless, we have plans to make that possible. For more details, you can look at this feature request: https://www.nomachine.com/FR08M02957.
After the implementation of the FR, the user will be able to drag and drop the *nxs (configuration) file in a web session with a needed configurations/user credentials and he/she will be able to log in with a web session.
Note that you have the option to be notified when this feature is implemented, you just have to click on “Notify me when the FR is implemented.” and insert your email address.