Passing merge tag data to embedded form

Hey @SeenDating

For this type of advanced usecase you will need to use our Embed SDK, which gives more control than the code snippets in the share panel.

In the SDK we added a `transferableUrlParameters` parameter that will grab query parameters from the parent window and pass them as hidden fields to the form.

here is the JavaScript snippet you could use
 

var url = "https://picsoung.typeform.com/to/QXS2h1" // NOTE: Replace with your typeform URL

const embedElement = document.querySelector('.target-dom-node') // NOTE: `.target-dom-node` is the target DOM element from your website or web app

window.typeformEmbed.makeWidget(
  embedElement,
  url, 
  {
    transferableUrlParameters: ['utm_source', 'username'], //pass automatically from parent window to embedded typeform
    onSubmit: function () {
      console.log('Typeform successfully submitted')
    }
  }
)

And on glitch you will find a project with the whole example, easy to fork and remix for your own use.

Hope it helps