Voting for ideas doesn't work w/ Chrome

I’m not sure if this is the right place to submit bugs for the website, but I can’t vote for ideas at this moment.

It works with Firefox, but Chrome gives an error message:

[blocked] The page at ‘https://www.ads-software.com/ideas/topic/datatables-plugin-in-tables-admin-panel’ was loaded over HTTPS, but ran insecure content from ‘https://www.ads-software.com/ideas/bb-admin/admin-ajax.php’: this content should also be loaded over HTTPS.