Add hidden form variable to the end of the URL - javascript

I have searched Unbounce and Google for documentation, but can't find a way to make this work. Any help is greatly appreciated!
Use case:
I have a test page setup in Unbounce and it would be great when a user lands on the page and submits the form that the value being generated through the script below in the hidden field is added to the current URL upon submission.
It's important that if the user lands on the page from an advertising campaign that the value is added to URL and does not replace it.
Example:
User lands on testpage.com or testpage.com?qs=3134728&pcd=THANKS20&dclid=CNi4wvCv39cCFZdFNwodE_wALA
Unique ID is created with the following JavaScript and added to a hidden field:
<script type="text/javascript">
$(document).ready(function() {
var id = new Date().toISOString().replace(/[-tTzZ:.]/g, '');
$('#lead_id').val(id);
});
</script>
User clicks submit and and is redirected to a thankyou page with the value of the hidden field passed in the URL:
testpage.com/thank-you?lead_id=1234
testpage.com/thankyou?qs=3134728&pcd=THANKS20&dclid=CNi4wvCv39cCFZdFNwodE_wALA&lead_id=1234
I should also mention that I can not edit the html of the form so this would need to happen with JavaScript as Unbounce provides a space to add custom code.

Is the form method get? If it is post it wont append that to the URL for the hidden field.
Your approach seems right however if this is the HTML on page:
<form action="http://example.com" method="get" id="theForm">
<input type="hidden" value="xyz" />
<button type="submit">Send</button>
</form>
You can use some JS code like one of the following to modify this...however you'll want to verify that everything still works as expected:
document.getElementById('theForm').action = "http://another.example.com";
document.getElementById('theForm').method = "get";

Related

Php Go back to previous page form resubmit

I have the following three php files:
reports.php, bwdates-reports-details.php and visitor-detail.php
reports.php contains my form which inputs the from and to date (erased some parts for brevity):
<form method="post" action="bwdates-reports-details.php">
...
<input type="date" id="fromdate" name="fromdate">
...
<input type="date" id="todate" name="todate">
<button type="submit" name="submit">Submit</button></p>
</form>
bwdates-reports-details.php outputs whatever parameters inputted in "fromdate" and "todate" of reports.php, see image below
As you can see in the image, there is an option to view the details of a transaction by clicking the "View Details" icon - i class="fa fa-edit fa-1x".
In view details (visitor-detail.php), There is a "Go Back" button.
<div align="center">
<button onclick="goBack()">Go Back</button>
</div>
There is also a goBack javascript function:
<script>
function goBack() {
window.history.back();
}
</script>
But when the go back button is clicked, I am getting Confirm Form Resubmission error. What I wanted to achieve with the "go back" button is to be able to go back to bwdates-reports-details.php with all the variables I passed through in reports.php. How do I achieve what I wanted to do? Please take note that this isn't a purchase related website. php or javascript will do. Thanks!
If a form is submitted (probably with the POST method), you send this data to the new page that is then opened. This page is also added to the history not only with the URL but also the sent data.
If you then leave this page and want to navigate back to this previous page you will get an "Resubmission" error, because the browser would need to send the data again to do so, but that is probaby a bad thing to do, because the data of the form would be sent twice. (Imagine that was a purchase form and the client would buy everything again.)
To make your goBack function work there are no other ways than get rid of that form submission page somehow or put a page in between that is not a form-data-receiver.
The best way would be to not go back in the browser history if you don't know from what pages the user navigated to this. Instead just navigate to an overview or dashboard.
Edit:
If that page your working on is only accessible by that response page of the form, maybe going two pages back will fix your error: history.back(2);
Because your form is using POST method and when you click on goBack button, it goes on previous page without variables. You may use put dates variable with goBack button and also use
if(isset($_GET['your variable name'];
{`fetch your variables`}
on your previous page.
Desired result was achieved by using the GET method instead of POST method (see https://www.tutorialspoint.com/php/php_get_post.htm). reports.php form code was replaced from:
<form method="post" action="bwdates-reports-details.php">
to:
<form method="get" action="bwdates-reports-details.php">
In bwdates-reports-details.php where I have the following variables:
$fdate=$_POST['fromdate'];
$tdate=$_POST['todate'];
Instead I replaced it with:
$fdate=$_GET['fromdate'];
$tdate=$_GET['todate'];
The goback javascript function I have in visitor-detail.php stays the same. And works like a charm. Thanks and cheers!

HTML form submit adding flag into URL

I have a simple html form. When the form is submitted, the page is refreshed and the input is appended to the url.
<form>
<input name="q" type="text" />
</form>
For example, the original URL is:
file:///Users/Download/dd.html
When the form is submitted, the URL becomes
file:///Users/Download/dd.html?q=ccc
I want to add a flag to let the backend knows where the request is from. Is it possible to add a flag into the header?
If not, I want to add &global to the end of the URL, so the url becomes file:///Users/Download/dd.html?q=ccc&global I tried to set the value of the input, but it will change what displayed in the page.
I am wondering if it is possible to add a flag into header, so my backend java code can handle it. Or, add the flag to the end of the URL.
Thanks a lot!
You cant add headers with a form but you can add other params to the form with a hidden input
<input type="hidden" name="global" value="" />
If you really want to add headers you will have to use javascript and ajax.
Keep in mind that once you use params in the url a user can either refresh the page or manually add the params which may not be what you expected.

Returning to previous page without adding a URL parameter

In my website I want to allow to return from 'itemY' page to 'topicX' page.
I don't want to add a get parameter:
mysite.com?ref=topicX
I'm not sure if using document.referrer is the right way.
Also 'itemX' can be reached directly from Google so it doesn't have to show the return link.
Can you add a form with a hidden field on the page. The value of the hidden form field would be the url of the location you want to return to. Then just check for the presence of this hidden form field using js?
<form id="myForm">
<input type="hidden" id="goTo" name="goTo" value="topicX" />
</form>

Redirect the website URL Form to a particular Page

My Form Works Successfully But in website URL it only Shows the address to a Form.I have multiple Pages in which the Form button shown.All I want when a user click on The Form for Page A for that Particular page it should shown as
"www.form.com?test=page A" - this should displayed on website URL
or when the Form is submitted the receiver should view that this form coming from Page A..In the Form field I hidden this fields name 'Test' so the user cannot see it but only the receiver can view it that its coming from Page A
On my Html code I have redirected to the Build in Form.
Here is my java script code
<script type="text/javascript" src="http://test.com/form/y.php/test2"></script><no1script>Online Form - </no1script>
How to show it to my Website URL
I understand your question as "How can I redirect with a specific GET parameter?", correct me if I'm wrong.
The solution for that would be quite simple: Append the GET parameter to the forms action:
<form action="target.php">
gets
<form action="target.php?test=page_a">
so that on target.php if you evaluate the GET values, test has the value page_a.
If you're trying to hide the post data, you can try something like:
<form action="https://test.com/forms/discount" style="display:none">
<input type="text" name="couponCode" value="secret">
<input id="myform" type="submit">
</form>
<script>
document.querySelector("#myform").click();
</script>
Note: This won't stop any web ninjas, so you should think of something else, like web tokens that function sortta like private public keys.

Passing variables in URL

I have an address book widget that shows if there are contents.
If there are no contents, an add button will show up. Upon pressing the add button, it will redirect to another page which will show the form.
The initial design of my website is as follows:
When the user click the add button, it will direct to a page using javascript function:
document.location.href="address?addOnly=true";
The form will display.
If successful, there are $.post that will change the div only that will enable user to do CRUD in the address book.
The problem with the variable inside the url which is address?addOnly=true is that when the user refresh it, it will always shows the add form.
That's why i've decided to hide the implementation using $.post
$.post('address', {"listEmty":true}, function (data) {
window.location = "address";
});
The problem with this is that it can't pass the variable at all.
My questions are:
How to handle the page refresh if using the get method, which passes the paramater in the URL,
Are there anyways in javascript/jquery to pass the variable using post method then refresh the page?
Thank you.
<FORM method="post" action="address" id="refresh" style="display: none;">
<DIV>
<INPUT type="hidden" name="addOnly" value="true">
</DIV>
</FORM>
<SCRIPT type="text/javascript">
document.getElementById('refresh').submit();
</SCRIPT>
What this does is create an invisible form, then immediately submits it. You can of course call the submit from within your other javascript code.

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