Launching main renderer window using 'file://' rather than `http://localhost:${process.env.ELECTRON_WEBPACK_WDS_PORT}`

Hello and thanks for all your fantastic work!

This is probably a no-can-do, but I don't understand enough about Webpack to be sure, so thought i'd ask.

Currently running into a situation where I am trying to load images via ``. Because electron-webpack uses the dev server and loads a URL, these images trigger `Not allowed to load local resource` Electron warning. This warning doesn't occur in the packaged application, because then we are serving from file system.

Now I could just go and disable `webSecurity` while `IS_DEV` is true, but i'd prefer to keep my PROD / DEV as close as possible, bringing me to this question...

-> Is there any way to load renderer window from file-system / packaged while still maintaining all the HMR / webpack-dev-goodness-stuff?