I want to display the spinner when I click on merge button and after clicking yes on the confirmation dialog but the spinner isn't working with onclick confirmation dialog.
Here is a snippet of my visualforce page
<div class="slds-scope" id="scope" style="position:relative"> <apex:form id="Formid"> <apex:pageBlock id="PCBlock"> <apex:outputPanel id="PCResultspanel"> <apex:pageBlockSection columns="1"> <apex:actionStatus id="pageStatus"> <apex:facet name="start"> <apex:outputPanel> <img src="/img/loading32.gif" width="25" height="25" /> <apex:outputLabel value="Loading..." /> </apex:outputPanel> </apex:facet> </apex:actionStatus> <apex:pageblocktable value="{!SimilarOppList}" var="Opp" id="SimilarOpps" rendered="{!(oppInfo.Record_Type_Name__c == 'Product Support - Parts')}"> <apex:column headerClass="TableTitle" headerValue="Action"> <div style="display: inline; margin-right: 3px;"> <apex:commandLink action="{!mergeWithPCOpp}" rendered="{!(oppInfo.Record_Type_Name__c == 'Product Support - Parts') && oppInfo.SBQQ__PrimaryQuote__r.Is_PCC_Quote__c == true}" onclick="return confirm('Are you sure you want to merge Current Opportunity with this one?');" reRender="scope" status="pageStatus"> <apex:param assignTo="{!OppIdToMergeWith}" value="{Opp.Opp.Id}" name="assignvalue" /> Merge </apex:commandLink> </div> </apex:column> </apex:pageblocktable> </apex:pageBlockSection> </apex:outputPanel> </apex:pageBlock> </apex:form> </div> 
