Form Pre-Fill Feature Upgrade

C'mon man. If you can't mention it due to Community rules, you're still mentioning it.

with some javascript you can append the previous page's form values to the URL and the current page can pre-fill using the parameters found in the url

Hi all, 

Has anyone been able to successfully implement the below? if yes, would be really helpful if you could share your working. 

"Also note that if you are embedding Marketo Landing Pages within other web pages using an <iframe>, the mkt_tok would need to be passed from the parent page to the <iframe> URL if you intend for form prefill to work within the <iframe>"

Thanks, 

Ishita

@Sanford Whiteman

Of course, nothing hard about it. Add the mkt_tok query param to the IFRAME's src.  Naturally you would want to dynamically inject the IFRAME in this case, otherwise you'd end up reloading the contents of the IFRAME when you change the src, which is a bad look.

Hi All,

I know this upgrade prevents form pre-fill with sender details when an email is forwarded (to a friend etc). But what I have noticed that the pre-fill does not happen only when the person who receives the forwarded email is already cookied on their browser. During testing I found out if the person who received the email (i..e email is forwarded to them) is not cookied on their browser they will still see the sender details in the form. Is there anyone who has come across this scenario and solved it?

Thanks

Hassan

There's no way to solve that, because the "correct" recipient cannot be distinguished from the eventual recipient.

The upgrade isn't intended to stop Pre-Fill when the email is forwarded to a brand new person, that's not the goal nor could it be.

Thanks, @Sanford Whiteman for a quick response. 

I'm sure it is simple but would you be having any document or steps on how to add the query param?

I'm not comfortable understanding sources or the query param, it would be helpful if there is a document that I can follow. 

Appreciate your help!

Ishita

No solution is possible. If I redirect an email to you, the links do not change. And if neither of us has clicked before, we are indistinguishable.

I'm sure it is simple but would you be having any document or steps on how to add the query param?

If you normally have a static IFRAME like so:

<div class="iframe-container">
<iframe src="https://pages.example.com/lp.html"></iframe>
</div>‍‍‍‍‍‍

Then you instead inject the IFRAME dynamically, after copying the querystring (a.k.a. search) from the main document:

<div class="iframe-container">
</div>
<script>
(function(){
  var lpContainer = document.querySelector(".iframe-container"),
      lpIFrame = document.createElement("iframe"),
      lpIFrameLoc = document.createElement("a");

  lpIFrameLoc.href = "https://pages.example.com/lp.html";
  lpIFrameLoc.search = document.location.search;
  lpIFrame.src = lpIFrameLoc.href;
  lpContainer.appendChild(lpIFrame); 
})();
</script>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

The blog comments here are really unfriendly to read though, you should open a new thread if you have more questions about this.

The form within the Marketo Landing Page that is being loaded in the <iframe> will pre-fill if the mkt_tok value from the original HTTP request is passed along to the <iframe> URL

How is this (pass original HTTP request to the iframe URL) accomplished? Would appreciate more detail or a Stack Overflow link that provides a solution. Anyone aware of a Wordpress plugin that makes it easy?