Certificate failure with Zscaler

My company has recently switched to using Zscaler
On my Windows laptop I use WSL

juliaup update

WARNING: cannot verify julialang-s3.julialang.org’s certificate, issued by ‘CN=Zscaler_Trust.xxx.com (t)\ ,OU=IT,O=XXX,ST=California,L=Santa Clara,C=US’:

Where the company is obfuscated slightly

Anyone else seen this?
I can wget the RELEASECHANNELDBVERSION file if I disable certificate checking

I am guessing Zscaler somehow spoofs certificates using its own certificates.
But for what reason?

Seemingly Zscaler does futz with certificates. The fix is semingly to import that certificate.

https://help.zscaler.com/zscaler-client-connector/uploading-custom-ssl-certificate-zscaler-client-connectorw