I dont have a work around other than the conditional statement you are already using.
maybe instead of using the conditional statement on the formprocessing js file, remove the conflicting CSS from the bootstrap css file and add it to the conditional statement:
*,
*:before,
*:after {
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
If I take one of them out of the page, the form works. Is there a workaround or bugfix available?
I'm currently using
<!--[if !IE 8]>
<style type="text/css">
*,
*:before,
*:after {
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
</style>
<![endif]-->