Warning! On the near horizon is a version of Firefox that will break embedded forms. As I noted in Firefox Developer Edition, Firefox 46 -- already in-the-wild for folks using Firefox Developer Edition -- is moving into Beta on March 8 and will be released worldwide via auto-update on April 19.
Luckily, your faithful forms guy has a fix you can put in place now to avoid disruption. Add the following style either in a <style> tag or via an external stylesheet. If you use an external stylesheet, make sure it loads before forms2.js/forms2.min.js.
#MktoForms2XDIframe {
visibility: hidden;
position: absolute;
display: block !important;
}
The breakage affects forms using the embed code. It does not affect native form objects on Marketo-hosted LPs, but it can affect forms loaded as embeds (in HTML blocks) on Marketo-hosted pages. If you are not sure which method you use, apply the fix.
Marketo Support has been made aware of the issue but has not planned an official fix.
The change is related to Gecko's reinterpretation of the CSSOM getComputedStyle method. It should be noted that Chrome and IE are not planning to use the same interpretation.
I wondered about that, per a note a couple above, here. But, unfortunately, it seems I did. I had to on our main site, and it worked.
Unfortunately, the Wordpress site is handled by somebody else, and I'm still waiting to hear back from them. Here's the link, in any case: Newsletter Sign-up - Third Certainty
This leads me to ask, is there a setting or something I need to change in Marketo or elsewhere, for the official fix to take?
Has anybody encountered issues with this hotfix in some scenarios? We have Drupal sites where this fix worked fine - but there's a Wordpress 4.3 site where things don't seem to be taking. The code was added to the CSS and loading above the .js on the page. Browser and Server side caches cleared, but still the form won't show.
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