Hi @LukaszPytlak Welcome to the community! How are you passing the hidden field information into the embed URL? Is it redirected from somewhere in your site/CRM?
The whole body section of the website is just typeform so it looks like this:
<body>
<div data-tf-widget="SE5IuPna" data-tf-transitive-search-params="id" data-tf-hidden="id=xxxxx" data-tf-iframe-props="title=Ankieta B2C (Work in Progress)" data-tf-medium="snippet" style="width:100%;height:100vh;"></div><script src="//embed.typeform.com/next/embed.js"></script>
</body>
I think that everything is done properly as told here: https://www.typeform.com/help/a/dynamically-pass-hidden-fields-from-a-url-to-an-embedded-typeform-for-advanced-users-4404652303892/
so I am a little bit confused.
What I need to get is to collect the id from the website address, for example if someone will get a link https://www.expert-transport.pl/a#id=zaqws I need to collect the typeform with the βzaqwsβ id. It works when I make it directly from typeform (https://z3kpdg9qv6h.typeform.com/to/SE5IuPna#id=zaqws) but from the website I canβt get the id value.
Hi @LukaszPytlak Thanks! How are you passing the ID into the URL?
@mathio do you see anything in the code that needs to be adjusted? 
Hello @LukaszPytlak
you correctly specified data-tf-transitive-search-params option in your embed. However you also have data-tf-hidden="id=xxxxx" option which is overriding the first one.
I think all you need to do is remove the data-tf-hidden option from your embed code.
Did what you told me to do (remove the βdata-tf-hiddenβ) but still canβt get the id value. Does anyone have any idea? @mathio @Liz
Looks like it is part of the fragment (after the # ).
My tests show typeform wonβt read that. If you stick it into the ?params= part, it reads that.
Hidden fields are correctly passed in the URL fragment (after #). Previously we used query params (after ?) and typeforms still support passing hidden fields that way as a fallback for compatibility reasons.
I built an example here: https://glitch.com/edit/#!/cliff-bristle-trillium
Typeform embedded in the example above has 1 hidden field named id.
In left column the value is hardcoded: data-tf-hidden="id=foobar"
Value is passed in URL fragment.
In right column the value is dynamically read from the URL: data-tf-transitive-search-params="id"
Value is passed in query string, because data-tf-transitive-search-params can be used for other use cases too (eg. you can pass tracking params like this and tracking pixels usually require query string, not fragment).
