webpack: MAIN_WINDOW_PRELOAD_WEBPACK_ENTRY is not defined

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• I agree to follow the code of conduct that this project follows, as appropriate.
• I have searched the issue tracker for an issue that matches the one I want to file, without success.

Please describe your issue:

I’m using the repo provided by @tgds found here. While it is in typescript rather than JS, it works no problem using the MAIN_WINDOW_WEBPACK_ENTRY variable.

The documentation for the webpack plugin says

For an entry point with the name main_window two variables will be defined MAIN_WINDOW_WEBPACK_ENTRY and MAIN_WINDOW_PRELOAD_WEBPACK_ENTRY

with this example:

const mainWindow = new BrowserWindow({
  webPreferences: {
    preload: MAIN_WINDOW_PRELOAD_WEBPACK_ENTRY,
  }
});

mainWindow.loadUrl(MAIN_WINDOW_WEBPACK_ENTRY);

However, if I modify the code in the repo provided to match, I get an error:

[karlitos]

What worked for me was:

"entryPoints": [
                {
                  "html": "./src/index.html",
                  "js": "./src/renderer.tsx",
                  "name": "main_window",
                  "preload": {
                    "js": "./src/preload.ts"
                  }
                }
              ]

I found it by looking at the repository related to another reported bug. It would be truly appreciated if you could update the documentation a little bit - I was searching for hours to find a way how tu use typescript in the preload script.

[evil-shrike]

It only says that I should use the variable MAIN_WINDOW_PRELOAD_WEBPACK_ENTRY but says nothing where it comes from and what should I do to initialize it.

Also it’d be very helpful to explain the magic behind the naming.