Breaking Change: Removed gatsby-plugin-offline from the core theme as there are more considerations and impacts from service workers than should be included in the core theme. This plugin has a lot of power and I would suggest using it on most Gatsby sites but want to leave this as an optional addition versus a forced inclusion in the core theme. If you want to include this in your site you would just add it to your main gatsby-config.js file.
Breaking Change: Removed gatsby-plugin-offline from the core theme as there are more considerations and impacts from service workers than should be included in the core theme. This plugin has a lot of power and I would suggest using it on most Gatsby sites but want to leave this as an optional addition versus a forced inclusion in the core theme. If you want to include this in your site you would just add it to your main
gatsby-config.jsfile.