Iframe resizer not resizing once site changed to ssl -

i set page few weeks ago, , working fine until site went live , changed ssl.

we've been in contact devs made page in iframe, , got them switch ssl , made sure have included iframeresizer.contentwindow.min.js file on end.

i've been running test 1 of other sites make sure been set on end, , worked no problems.

link page iframe: https://www.bedsrus.co.nz/sleep-selector test page used check setup: https://www.bedsrus.co.nz/test

logging has been left on, if you'd have look.

i've tried changing heightcalculationmethod to other options including lowestelement, bodyscroll, , max.

there few warnings coming content page don't think causing problem.

any appreciated.

just had quick , on https://www.bedsrus.co.nz/sleep-selector using v1.4.4, iframe running latest version of script (v2.8.6)

whilst work, need latest version on both pages use features of current version.

the script isn't logging console on test page.