curl - skip certificate validation on "vagrant up" -

i'd skip curl certificate validation on vagrant up since our proxy mitms https, curls' usual ssl cert error pops up.

i tried vagrant --insecure puppetlabs/debian-7.8-32-nocm didn't change anything. next tried config.vm.box_download_insecure , config.vm.box_download_insecure = "puppetlabs/debian-7.8-32-nocm" in vagrantfile, alas - no luck.

• what's url config.vm.box_download_insecure if use boxes atlas?
• is there possibility make curl skip cert checks?

it expecting boolean (true/false).

config.vm.box_download_insecure = true 

https://www.vagrantup.com/docs/vagrantfile/machine_settings.html

config.vm.box_download_insecure - if true, ssl certificates server not verified. default, if url https url, ssl certs verified.