Problem with Parameters in Routing Path

I have this routing path set up

params: {}
path: "/people/:people_id?/:business_id?"

In this particular example, there is no 'people_id' to pass to the route and the 'business_id' = '532'. This is my code in Wappler

<button class="btn d-print-none btn-sm mb-2 btn-outline-success" dmx-on:click="browser1.goto('./people//'+business_ID_var.value)">

so when you click on the button the url looks like this (note the double forward slash which is where the 'people_id' would normally be)

/admin/people//532

And I would like to use 'params.business_id' at the other end but 'params.business_id' is not returning anything.

I can only imagine that I must have some value where the 'people_id' should be

Am I right?
Should it fail because of the way I have done it?
What should I put in the space between the two forward slashes?

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