Embedded form stuck at please wait after submitting.

Am new to this but I have followed the steps in adding my form to my wordpress site but when I click submit the PLEASE WAIT just continues forever.

I have shared the link via quick share to a friend who successfully completed the from and submitted it but for some reason in wordpress its not working. Any help much appreciated 

Link to the page is here

http://idhire.com.au/seq-water/

Robert

It seems the form is sandboxed on the website. Please add the code sandbox="allow-forms" code to the iframe code.

Here is the updated iFrame code, you can use this to re-embed the form:

<iframe class="wp-embedded-content" sandbox="allow-scripts allow-forms" security="restricted" width="1200" height="500" src="//oembed.jotform.com/form/91756964012865#?secret=tCOr54H4CF" data-secret="tCOr54H4CF"></iframe>