Modals not working

Hi-
I'm encountering an issue with an online site I'm developing having to do with modals. The issue is specific only to newer versions of MacOS/Safari (desktop only). It's not replicable using any other browser, and is not replicable on MacOS10.12/Safari 10 combo.

The site I'm working on launches within an iFrame. Some modals open just fine, but others pop up cut off at the top of the screen and the buttons within the modal are inactive. Are there any known issues with modal behaviors in this scenario? And if so, are there any workarounds?

I can send you a link to the site to help troubleshoot.



Some additional info I have received from an engineer who did some investigation: i was able to identify a height where i could reliably reproduce the issue on the first modal that pops up; now, i do think this is an Apple/Safari issue, because if i manually unset and reset the height on either of the iframes (in the developer console) the issue resolves (this usually points to a browser bug, not a code bug). Apple has had known issues with fixed positioning;
Please open a new bug report on https://bugs.webkit.org and attach a reduced test case. Thanks!

Modals not working
 
 
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