Issue with Zscaler certificate #80
Description
It seems that if a client uses a Zscaler certificate, librespeed fails. This is despite NOT using the --secure flag. Why is this certificate being checked and rejected when the --secure flag is not set?
Here is my output
librespeed-cli --ipv4 --duration 15 --upload-size 1024 --verbose --json
Retrieving server list from https://librespeed.org/backend-servers/servers.php
Retry with /.well-known/librespeed
Error when fetching server list: Get "https://librespeed.org/backend-servers/servers.php/.well-known/librespeed": x509: certificate signed by unknown authority
Terminated due to error