<aura:component controller="CH_Account_Summary_Report_Controller" implements="force:appHostable,flexipage:availableForAllPageTypes,force:hasRecordId">
<aura:attribute name="recordId" type="Id" />
<aura:handler name="init" value="{!this}" action="{!c.doInit}" />
<aura:attribute name="Url" type="String"/>
<iframe source="{!v.Url}" width="100%"/>

public with sharing class CH_Account_Summary_Report_Controller {
@AuraEnabled
public static string getReportURL(Id AccountId)
{
    system.debug(AccountId);
    Account act = [SELECT SEG_SCH_ID__c FROM Account WHERE Id=:AccountId];
    string UCN = act.SEG_SCH_ID__c;
    string Url = 'https://dev-jasper.scholastic.com/jasperserver/flow.html?_flowId=viewReportFlow&reportUnit=%2FUAT%2FCRM_Reports%2FRevenue_Summary_Report&ReportFlag=RU&UCN='+UCN+'&ParentFolderUri=%2FUAT%2FCRM_Reports&reportLocale=en_US&j_username=SFDC_user&j_password=%24prinG%23123&standAlone=true&decorate=no';

    return Url;
}

({
doInit : function(component, event, helper) {
    var action = component.get("c.getReportURL");
    action.setParams({
        "AccountId": component.get("v.recordId")
    });
    action.setCallback(this, function(response) {
        if(response.getState() == "SUCCESS"){
            component.set("v.Url", response.getReturnValue());
            //alert(response.getReturnValue());
        }
        else if (response.getState() == "ERROR"){
            $A.log("ERRORS", response.getError());
        }
    });
    $A.enqueueAction(action);
}