How to map all requests to a controller go to one method and access the original parameter
<p>I have a controller where I'm trying to set defaults based on the url - but have all of the requests going to one controller.
Trying to extend the answer in : <a href="https://stackoverflow.com/questions/31595695/urlmapping-to-direct-all-request-to-a-single-controller-action">URLMapping to direct all request to a single controller/action</a></p>

<p>I did this in URLMappings.groovy</p>

<pre><code>"/**"(controller:"lab", action:"index", params:[labName:action])
</code></pre>

<p>Where I was hoping I could add the original action name to the parameters, but this doesn't seem to do anything.</p>

<p>Any way I could have all the requests going to that controller mapped to one action, and see what the original action name would be?</p>