Soft navigation LCP FCP not displaying in report

[SivasubramanianV]

I am using flow.startTimeSpan() and flow.endTimeSpan() for some actions but not seeing FCP and LCP.

Chrome version: 123.0.6312.123
Platform: Mac
Lighthouse version:10.4.0
Lighthouse-plugin-soft-navigation: 1.1.0

[adamraine]

Can you please provide a copy of the code or a minimum reproduction script. This screenshot isn't much to go on.

[SivasubramanianV]

@adamraine
Please find below code

const { startFlow } = require("lighthouse/core/index.cjs");

before(async () => {

        // let desktopConfig = await import("../../../node_modules/lighthouse/core/config/desktop-config.js");

        // let mobileConfig = await import("../../../node_modules/lighthouse/core/config/default-config.js");

        console.log("*** ---ting Flow! --- *** ");

        await Utilities.windowMaximization();

        await Utilities.openURL();

        if(process.env.FORM_FACTOR==='desktop'){

            process.env.SCREENWIDTH=1440;

            process.env.SCREENHEIGHT=900;

        }

        puppeteerBrowser = await browser.getPuppeteer();

        page = (await puppeteerBrowser.pages())[0];

      

        let mobileConfig={

           extends:'lighthouse:default',

           plugins:['lighthouse-plugin-soft-navigation']

 

        }

        let desktopConfig={

            extends:'lighthouse:default',

            plugins:['lighthouse-plugin-soft-navigation']

         }

      

        if(process.env.FORM_FACTOR==='desktop'){

        flow = await startFlow(page, {name: '',

            config: desktopConfig.default,

            flags: {

                screenEmulation: {disabled: true},

                formFactor:'desktop',

                throttlingMethod:'provided'

                }

            });

        }

Also somewhere below, i am using flow.startTimeSpan() and do some actions and then flow.endTimeSpan().

I get reports but no FCP and LCP.