iframe code not working on SharePoint site

I am trying to embed iFrame code for a form into a SharePoint site and it keeps saying the code is incomplete. Something appears to have broken at some point. as it was working last week. The problem started because the form just kept saying "loading embed" on the screen and I could not edit the webpart. So, I had to start over and insert a new embed webpart. The embed code wbpart on the SharePoint site only accepts iFrame.

Here is the code I copied from the JotForm: 

    <iframe
      id="JotFormIFrame-72574845616971"
      title="Capital Requisition Rev 111317"
      onDISABLEDload="window.parent.scrollTo(0,0)"
      allowtransparency="true"
      allowfullscreen="true"
      allow="geolocation; microphone; camera"
      src="https://form.jotform.com/72574845616971"
      frameborder="0"
      style="
      min-width: 100%;
      height:4288px;
      border:none;"
      scrolling="no"
    >
    </iframe>
    <script type="text/javascript">
      var ifr = document.getElementById("JotFormIFrame-72574845616971");
      if(window.location.href && window.location.href.indexOf("?") > -1) {
        var get = window.location.href.substr(window.location.href.indexOf("?") + 1);
        if(ifr && get.length > 0) {
          var src = ifr.src;
          src = src.indexOf("?") > -1 ? src + "&" + get : src  + "?" + get;
          ifr.src = src;
        }
      }
      window.handleIFrameMessage = function(e) {
        if (typeof e.data === 'object') { return; }
        var args = e.data.split(":");
        if (args.length > 2) { iframe = document.getElementById("JotFormIFrame-" + args[(args.length - 1)]); } else { iframe = document.getElementById("JotFormIFrame"); }
        if (!iframe) { return; }
        switch (args[0]) {
          case "scrollIntoView":
            iframe.scrollIntoView();
            break;
          case "setHeight":
            iframe.style.height = args[1] + "px";
            break;
          case "collapseErrorPage":
            if (iframe.clientHeight > window.innerHeight) {
              iframe.style.height = window.innerHeight + "px";
            }
            break;
          case "reloadPage":
            window.location.reload();
            break;
          case "loadScript":
            var src = args[1];
            if (args.length > 3) {
                src = args[1] + ':' + args[2];
            }
            var script = document.createElement('script');
            script.src = src;
            script.type = 'text/javascript';
            document.body.appendChild(script);
            break;
          case "exitFullscreen":
            if      (window.document.exitFullscreen)        window.document.exitFullscreen();
            else if (window.document.mozCancelFullScreen)   window.document.mozCancelFullScreen();
            else if (window.document.mozCancelFullscreen)   window.document.mozCancelFullScreen();
            else if (window.document.webkitExitFullscreen)  window.document.webkitExitFullscreen();
            else if (window.document.msExitFullscreen)      window.document.msExitFullscreen();
            break;
        }
        var isJotForm = (e.origin.indexOf("jotform") > -1) ? true : false;
        if(isJotForm && "contentWindow" in iframe && "postMessage" in iframe.contentWindow) {
          var urls = {"docurl":encodeURIComponent(document.URL),"referrer":encodeURIComponent(document.referrer)};
          iframe.contentWindow.postMessage(JSON.stringify({"type":"urls","value":urls}), "*");
        }
      };
      if (window.addEventListener) {
        window.addEventListener("message", handleIFrameMessage, false);
      } else if (window.attachEvent) {
        window.attachEvent("onmessage", handleIFrameMessage);
      }
      </script>
    <iframe
      id="JotFormIFrame-72574845616971"
      title="Capital Requisition Rev 111317"
      onDISABLEDload="window.parent.scrollTo(0,0)"
      allowtransparency="true"
      allowfullscreen="true"
      allow="geolocation; microphone; camera"
      src="https://form.jotform.com/72574845616971"
      frameborder="0"
      style="
      min-width: 100%;
      height:4288px;
      border:none;"
      scrolling="no"
    >
    </iframe>
    <script type="text/javascript">
      var ifr = document.getElementById("JotFormIFrame-72574845616971");
      if(window.location.href && window.location.href.indexOf("?") > -1) {
        var get = window.location.href.substr(window.location.href.indexOf("?") + 1);
        if(ifr && get.length > 0) {
          var src = ifr.src;
          src = src.indexOf("?") > -1 ? src + "&" + get : src  + "?" + get;
          ifr.src = src;
        }
      }
      window.handleIFrameMessage = function(e) {
        if (typeof e.data === 'object') { return; }
        var args = e.data.split(":");
        if (args.length > 2) { iframe = document.getElementById("JotFormIFrame-" + args[(args.length - 1)]); } else { iframe = document.getElementById("JotFormIFrame"); }
        if (!iframe) { return; }
        switch (args[0]) {
          case "scrollIntoView":
            iframe.scrollIntoView();
            break;
          case "setHeight":
            iframe.style.height = args[1] + "px";
            break;
          case "collapseErrorPage":
            if (iframe.clientHeight > window.innerHeight) {
              iframe.style.height = window.innerHeight + "px";
            }
            break;
          case "reloadPage":
            window.location.reload();
            break;
          case "loadScript":
            var src = args[1];
            if (args.length > 3) {
                src = args[1] + ':' + args[2];
            }
            var script = document.createElement('script');
            script.src = src;
            script.type = 'text/javascript';
            document.body.appendChild(script);
            break;
          case "exitFullscreen":
            if      (window.document.exitFullscreen)        window.document.exitFullscreen();
            else if (window.document.mozCancelFullScreen)   window.document.mozCancelFullScreen();
            else if (window.document.mozCancelFullscreen)   window.document.mozCancelFullScreen();
            else if (window.document.webkitExitFullscreen)  window.document.webkitExitFullscreen();
            else if (window.document.msExitFullscreen)      window.document.msExitFullscreen();
            break;
        }
        var isJotForm = (e.origin.indexOf("jotform") > -1) ? true : false;
        if(isJotForm && "contentWindow" in iframe && "postMessage" in iframe.contentWindow) {
          var urls = {"docurl":encodeURIComponent(document.URL),"referrer":encodeURIComponent(document.referrer)};
          iframe.contentWindow.postMessage(JSON.stringify({"type":"urls","value":urls}), "*");
        }
      };
      if (window.addEventListener) {
        window.addEventListener("message", handleIFrameMessage, false);
      } else if (window.attachEvent) {
        window.attachEvent("onmessage", handleIFrameMessage);
      }
      </script>
    <iframe
      id="JotFormIFrame-72574845616971"
      title="Capital Requisition Rev 111317"
      onDISABLEDload="window.parent.scrollTo(0,0)"
      allowtransparency="true"
      allowfullscreen="true"
      allow="geolocation; microphone; camera"
      src="https://form.jotform.com/72574845616971"
      frameborder="0"
      style="
      min-width: 100%;
      height:4288px;
      border:none;"
      scrolling="no"
    >
    </iframe>
    <script type="text/javascript">
      var ifr = document.getElementById("JotFormIFrame-72574845616971");
      if(window.location.href && window.location.href.indexOf("?") > -1) {
        var get = window.location.href.substr(window.location.href.indexOf("?") + 1);
        if(ifr && get.length > 0) {
          var src = ifr.src;
          src = src.indexOf("?") > -1 ? src + "&" + get : src  + "?" + get;
          ifr.src = src;
        }
      }
      window.handleIFrameMessage = function(e) {
        if (typeof e.data === 'object') { return; }
        var args = e.data.split(":");
        if (args.length > 2) { iframe = document.getElementById("JotFormIFrame-" + args[(args.length - 1)]); } else { iframe = document.getElementById("JotFormIFrame"); }
        if (!iframe) { return; }
        switch (args[0]) {
          case "scrollIntoView":
            iframe.scrollIntoView();
            break;
          case "setHeight":
            iframe.style.height = args[1] + "px";
            break;
          case "collapseErrorPage":
            if (iframe.clientHeight > window.innerHeight) {
              iframe.style.height = window.innerHeight + "px";
            }
            break;
          case "reloadPage":
            window.location.reload();
            break;
          case "loadScript":
            var src = args[1];
            if (args.length > 3) {
                src = args[1] + ':' + args[2];
            }
            var script = document.createElement('script');
            script.src = src;
            script.type = 'text/javascript';
            document.body.appendChild(script);
            break;
          case "exitFullscreen":
            if      (window.document.exitFullscreen)        window.document.exitFullscreen();
            else if (window.document.mozCancelFullScreen)   window.document.mozCancelFullScreen();
            else if (window.document.mozCancelFullscreen)   window.document.mozCancelFullScreen();
            else if (window.document.webkitExitFullscreen)  window.document.webkitExitFullscreen();
            else if (window.document.msExitFullscreen)      window.document.msExitFullscreen();
            break;
        }
        var isJotForm = (e.origin.indexOf("jotform") > -1) ? true : false;
        if(isJotForm && "contentWindow" in iframe && "postMessage" in iframe.contentWindow) {
          var urls = {"docurl":encodeURIComponent(document.URL),"referrer":encodeURIComponent(document.referrer)};
          iframe.contentWindow.postMessage(JSON.stringify({"type":"urls","value":urls}), "*");
        }
      };
      if (window.addEventListener) {
        window.addEventListener("message", handleIFrameMessage, false);
      } else if (window.attachEvent) {
        window.attachEvent("onmessage", handleIFrameMessage);
      }
      </script> <iframe id="JotFormIFrame-72574845616971" title="Capital Requisition Rev 111317" onDISABLEDload="window.parent.scrollTo(0,0)" allowtransparency="true" allowfullscreen="true" allow="geolocation; microphone; camera" src="https://form.jotform.com/72574845616971" frameborder="0" style=" min-width: 100%; height:4288px; border:none;" scrolling="no" > </iframe> <script type="text/javascript"> var ifr = document.getElementById("JotFormIFrame-72574845616971"); if(window.location.href && window.location.href.indexOf("?") > -1) { var get = window.location.href.substr(window.location.href.indexOf("?") + 1); if(ifr && get.length > 0) { var src = ifr.src; src = src.indexOf("?") > -1 ? src + "&" + get : src + "?" + get; ifr.src = src; } } window.handleIFrameMessage = function(e) { if (typeof e.data === 'object') { return; } var args = e.data.split(":"); if (args.length > 2) { iframe = document.getElementById("JotFormIFrame-" + args[(args.length - 1)]); } else { iframe = document.getElementById("JotFormIFrame"); } if (!iframe) { return; } switch (args[0]) { case "scrollIntoView": iframe.scrollIntoView(); break; case "setHeight": iframe.style.height = args[1] + "px"; break; case "collapseErrorPage": if (iframe.clientHeight > window.innerHeight) { iframe.style.height = window.innerHeight + "px"; } break; case "reloadPage": window.location.reload(); break; case "loadScript": var src = args[1]; if (args.length > 3) { src = args[1] + ':' + args[2]; } var script = document.createElement('script'); script.src = src; script.type = 'text/javascript'; document.body.appendChild(script); break; case "exitFullscreen": if (window.document.exitFullscreen) window.document.exitFullscreen(); else if (window.document.mozCancelFullScreen) window.document.mozCancelFullScreen(); else if (window.document.mozCancelFullscreen) window.document.mozCancelFullScreen(); else if (window.document.webkitExitFullscreen) window.document.webkitExitFullscreen(); else if (window.document.msExitFullscreen) window.document.msExitFullscreen(); break; } var isJotForm = (e.origin.indexOf("jotform") > -1) ? true : false; if(isJotForm && "contentWindow" in iframe && "postMessage" in iframe.contentWindow) { var urls = {"docurl":encodeURIComponent(document.URL),"referrer":encodeURIComponent(document.referrer)}; iframe.contentWindow.postMessage(JSON.stringify({"type":"urls","value":urls}), "*"); } }; if (window.addEventListener) { window.addEventListener("message", handleIFrameMessage, false); } else if (window.attachEvent) { window.attachEvent("onmessage", handleIFrameMessage); } </script>

    <iframe
      id="JotFormIFrame-72574845616971"
      title="Capital Requisition Rev 111317"
      onDISABLEDload="window.parent.scrollTo(0,0)"
      allowtransparency="true"
      allowfullscreen="true"
      allow="geolocation; microphone; camera"
      src="https://form.jotform.com/72574845616971"
      frameborder="0"
      style="
      min-width: 100%;
      height:4288px;
      border:none;"
      scrolling="no"
    >
    </iframe>
    <script type="text/javascript">
      var ifr = document.getElementById("JotFormIFrame-72574845616971");
      if(window.location.href && window.location.href.indexOf("?") > -1) {
        var get = window.location.href.substr(window.location.href.indexOf("?") + 1);
        if(ifr && get.length > 0) {
          var src = ifr.src;
          src = src.indexOf("?") > -1 ? src + "&" + get : src  + "?" + get;
          ifr.src = src;
        }
      }
      window.handleIFrameMessage = function(e) {
        if (typeof e.data === 'object') { return; }
        var args = e.data.split(":");
        if (args.length > 2) { iframe = document.getElementById("JotFormIFrame-" + args[(args.length - 1)]); } else { iframe = document.getElementById("JotFormIFrame"); }
        if (!iframe) { return; }
        switch (args[0]) {
          case "scrollIntoView":
            iframe.scrollIntoView();
            break;
          case "setHeight":
            iframe.style.height = args[1] + "px";
            break;
          case "collapseErrorPage":
            if (iframe.clientHeight > window.innerHeight) {
              iframe.style.height = window.innerHeight + "px";
            }
            break;
          case "reloadPage":
            window.location.reload();
            break;
          case "loadScript":
            var src = args[1];
            if (args.length > 3) {
                src = args[1] + ':' + args[2];
            }
            var script = document.createElement('script');
            script.src = src;
            script.type = 'text/javascript';
            document.body.appendChild(script);
            break;
          case "exitFullscreen":
            if      (window.document.exitFullscreen)        window.document.exitFullscreen();
            else if (window.document.mozCancelFullScreen)   window.document.mozCancelFullScreen();
            else if (window.document.mozCancelFullscreen)   window.document.mozCancelFullScreen();
            else if (window.document.webkitExitFullscreen)  window.document.webkitExitFullscreen();
            else if (window.document.msExitFullscreen)      window.document.msExitFullscreen();
            break;
        }
        var isJotForm = (e.origin.indexOf("jotform") > -1) ? true : false;
        if(isJotForm && "contentWindow" in iframe && "postMessage" in iframe.contentWindow) {
          var urls = {"docurl":encodeURIComponent(document.URL),"referrer":encodeURIComponent(document.referrer)};
          iframe.contentWindow.postMessage(JSON.stringify({"type":"urls","value":urls}), "*");
        }
      };
      if (window.addEventListener) {
        window.addEventListener("message", handleIFrameMessage, false);
      } else if (window.attachEvent) {
        window.attachEvent("onmessage", handleIFrameMessage);
      }
      </script>
    <iframe
      id="JotFormIFrame-72574845616971"
      title="Capital Requisition Rev 111317"
      onDISABLEDload="window.parent.scrollTo(0,0)"
      allowtransparency="true"
      allowfullscreen="true"
      allow="geolocation; microphone; camera"
      src="https://form.jotform.com/72574845616971"
      frameborder="0"
      style="
      min-width: 100%;
      height:4288px;
      border:none;"
      scrolling="no"
    >
    </iframe>
    <script type="text/javascript">
      var ifr = document.getElementById("JotFormIFrame-72574845616971");
      if(window.location.href && window.location.href.indexOf("?") > -1) {
        var get = window.location.href.substr(window.location.href.indexOf("?") + 1);
        if(ifr && get.length > 0) {
          var src = ifr.src;
          src = src.indexOf("?") > -1 ? src + "&" + get : src  + "?" + get;
          ifr.src = src;
        }
      }
      window.handleIFrameMessage = function(e) {
        if (typeof e.data === 'object') { return; }
        var args = e.data.split(":");
        if (args.length > 2) { iframe = document.getElementById("JotFormIFrame-" + args[(args.length - 1)]); } else { iframe = document.getElementById("JotFormIFrame"); }
        if (!iframe) { return; }
        switch (args[0]) {
          case "scrollIntoView":
            iframe.scrollIntoView();
            break;
          case "setHeight":
            iframe.style.height = args[1] + "px";
            break;
          case "collapseErrorPage":
            if (iframe.clientHeight > window.innerHeight) {
              iframe.style.height = window.innerHeight + "px";
            }
            break;
          case "reloadPage":
            window.location.reload();
            break;
          case "loadScript":
            var src = args[1];
            if (args.length > 3) {
                src = args[1] + ':' + args[2];
            }
            var script = document.createElement('script');
            script.src = src;
            script.type = 'text/javascript';
            document.body.appendChild(script);
            break;
          case "exitFullscreen":
            if      (window.document.exitFullscreen)        window.document.exitFullscreen();
            else if (window.document.mozCancelFullScreen)   window.document.mozCancelFullScreen();
            else if (window.document.mozCancelFullscreen)   window.document.mozCancelFullScreen();
            else if (window.document.webkitExitFullscreen)  window.document.webkitExitFullscreen();
            else if (window.document.msExitFullscreen)      window.document.msExitFullscreen();
            break;
        }
        var isJotForm = (e.origin.indexOf("jotform") > -1) ? true : false;
        if(isJotForm && "contentWindow" in iframe && "postMessage" in iframe.contentWindow) {
          var urls = {"docurl":encodeURIComponent(document.URL),"referrer":encodeURIComponent(document.referrer)};
          iframe.contentWindow.postMessage(JSON.stringify({"type":"urls","value":urls}), "*");
        }
      };
      if (window.addEventListener) {
        window.addEventListener("message", handleIFrameMessage, false);
      } else if (window.attachEvent) {
        window.attachEvent("onmessage", handleIFrameMessage);
      }
      </script>

Can you please try this guide in embedding your form into SharePoint?

Guide:https://www.jotform.com/help/152-Adding-a-form-to-SharePoint

Please give it a try and let us know if the issue still remains.

It turns out it was a network issue for us. However, in viewing these instructions, I think they may be outdated as SharePoint Modern’s interface looks and functions quite differently. You all just might want to investigate to make sure you have the most recent information and screenshots.
Mark Hannah
Internal Communications Coordinator
Public Relations
706.509.3253 phone | 770.905.9172 cell
mhannah@floyd.org| www.floyd.org
Corporate Support Center
420 E. 2nd Ave.
Rome, GA 30161
...

Thanks for the heads up. This is noted. We have a team who works on updating it and I'm sure they are looking into upgrading our guides as soon as they can.

Let us know if you have any questions or if you need further assistance.