Hi Uttham!
Reading through our documentation I see it might be related to the type of user-agent being used. We can alter this to help make sure the application reacts the same for each type of browser.
From our docs;
"If your tested website or web application behavior varies depending on whether your browser is in headless mode or not, for example, some resources are not available in headless mode, you may want to bypass this by overriding the user-agent string sent by your browser. To do this, you can use the --user-agent command-line parameter of Chrome and Edge."
Here is the document itself with more information;
https://support.smartbear.com/testcomplete/docs/app-testing/web/supported-browsers/headless.html
I hope this helps!
