How do I display categories assigned to entry within Channel entries tag

Question

In my code below I'm trying to list the category_url_titles within data-type. This is returning all the categories for that channel, but I only want to show the categories assigned to that entry. I thought maybe there would be an entry_id="{entry_id}" thing for the channel categories tag, but there isn't. Any ideas?

    {exp:channel:entries channel="locations" dynamic="no"}
    <a href="{title_permalink=locations/details/}" data-type="{exp:channel:categories style="linear" }{category_url_title} {/exp:channel:categories}"></a>
    {/exp:channel:entries}  

Answer 1

Within your channel:entries loop, use the categories loop:

data-type="{categories backspace="1"}{category_url_title} {/categories}"