tsung-recorder creates unusable data

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Hi,
I try to use tsung to test nextcloud.
after starting with tsung-recorder start I use the proxy to log into next-cloud and navigate to several menu entries.
Tsung-recorder produces the following output:

<session name='rec20240430-1221' probability='100'  type='ts_http'>
<request><http url='nextcloud.test:443' version='1.1' method='CONNECT'></http></request>

<thinktime random='true' value='4'/>

<request><http url='' version='1.1' method='CONNECT'></http></request>

<thinktime random='true' value='22'/>

<request><http url='' version='1.1' method='CONNECT'></http></request>
<request><http url='' version='1.1' method='CONNECT'></http></request>
<request><http url='' version='1.1' method='CONNECT'></http></request>
<request><http url='' version='1.1' method='CONNECT'></http></request>
<request><http url='' version='1.1' method='CONNECT'></http></request>
<request><http url='' version='1.1' method='CONNECT'></http></request>
<request><http url='' version='1.1' method='CONNECT'></http></request>
<request><http url='' version='1.1' method='CONNECT'></http></request>
<request><http url='' version='1.1' method='CONNECT'></http></request>
<request><http url='' version='1.1' method='CONNECT'></http></request>
<request><http url='' version='1.1' method='CONNECT'></http></request>
<request><http url='' version='1.1' method='CONNECT'></http></request>

<thinktime random='true' value='6'/>

<request><http url='' version='1.1' method='CONNECT'></http></request>
[...]

As you can see, the url parameter is empty.

I expected the url to be something like:
https://nextcloud.test/index.php/apps/dashboard/

because that's what my browser dev-console puts out

The version is:
Tsung Recorder version 1.8.0

TIA