I have overriden Opportunity new button with Aura component below. Then I am trying to navigate from aura to LWC with a `backgroundContext` which means i want to open the lwc just in front of list view . But currently the page is opening with a blank background,

[![enter image description here][1]][1]

I m trying to open it on top of list view

     <aura:component implements="lightning:actionOverride,lightning:isUrlAddressable" access="global" >
        
        
             <aura:handler name="init" value="{! this }" action="{! c.myAction }"/>
              <lightning:navigation aura:id="navService"/>
        </aura:component>

JS

    ({
        myAction : function(component, event, helper) {
            var navService = component.find("navService");
            var compDefinition = {
                type: 'standard__component',
                componentDef: "c:newoppwizard",
                attributes: {
                },
                state: {
                    nooverride: 1,
                    navigationLocation: 'LIST_VIEW',
                    backgroundContext: '/lightning/o/Opportunity/list?filterName=Recent'
                    //backgroundContext: back_url
                }
            };
            let encodedCompDef = btoa(JSON.stringify(compDefinition));
            var urlEvent = $A.get("e.force:navigateToURL");
            urlEvent.setParams({
                "url": "/one/one.app#" + encodedCompDef
            });
            urlEvent.fire();
        }
    })


  [1]: https://i.sstatic.net/f5w9u.png