the pageLoad event is triggered when first opening the zoho crm. never not triggered again . I  am testing it in  sandbox environment with chrome . ZohoEmbededAppSDK.min.js version is v1.0.5. the code is following. 

ZOHO.embeddedApp.on("PageLoad",function(data){
console.log(">>>>Page Loaded");
})

ZOHO.embeddedApp.init()
.then(function(){

})