How can i load muti html in an electron app in electron@10.1.2

in electron-api-demos, the app load muti htmls into an electron app, use html import. but the electron-api-demos is in electron@7.2.4

but i learned that HTML import is obsolete since Google Chrome 73, and i cann’t use this way to load muti htmls into an electron app in electron@10.1.2, is this a bug or something changed?

my electron app cotains many tabs, and it’s hard to write all the html codes in one html file

and how can i load muti htmls into an electron app in electron@10.1.2

or is there a better way to develop an electron app with many tabs?

that will help me a lot, waiting for your reply and suggests, and thank you~