There were 2 mixed content warning when loading the page on HTTPS:
GA was loaded on HTTP, which was totally unnecessary as they totally support HTTPS (and even recommend it)
the legacy leaverou.github.com domain of GH Pages redirects to leaverou.github.io (they made this change years ago), but the redirection does not preserve the scheme and always use HTTP. Moving to the actual GH Pages domain allows using HTTPS properly
There were 2 mixed content warning when loading the page on HTTPS:
leaverou.github.com
domain of GH Pages redirects to leaverou.github.io (they made this change years ago), but the redirection does not preserve the scheme and always use HTTP. Moving to the actual GH Pages domain allows using HTTPS properly