Examples are adapted from https://github.com/marko-js/examples 's todo mvc app, with the webpack-express and webpack-fastify examples providing the base config for the respective adaptations of the todo mvc app

npm install and npm run dev inside all three subfolders

Observed behaviour on Windows, per folder:

example-markoserve (port 3000):

console output correctly shows that myMethodx does not exist, browser shows webpack error

example-webpack-express (port 3001):

console output correctly shows that myMethodx does not exist, browser shows webpack error

example-webpack-fastify (port 3002):

console output shows both webpack configs have compiled successfully, and browser simply displays an error 500 page, with nothing at all pointing to myMethodx anywhere, which makes building on the fastify example dangerous, it's basically a ticking time bomb, a typo could make it uncompilable without a way to trace it back

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That's it.

No clue why fastify behaves differently, I had no luck in figuring it out in my limited investigations.

However, I had many more issues (on Windows, not sure if that means anything):

Other joyous fun things:

• I have tried to make a smaller minimal repro, but the "basic" example from https://github.com/marko-js/examples has resisted all of my attempts to put a working component directory into it. The failed attempt is on the branch "minimal".

  Doesn't work by using neither component.js or component-browser.js for various reasons, no clue why.

• On Windows, I have to repeatedly delete node_modules/.cache for webpack to recognize changed files. Configuring webpack to use

  { cache: false }

  instead of

  { cache: { type: "filesystem" } }

  fixes this, but of course this is not applicable in the @marko/serve example

• Neither webpack examples were equipped to properly display https://github.com/marko-js/examples 's basic example, autoprefixer had to be configured. Found it weird how much I had to dive into webpack internals just to make the basic example work in the fastify and express examples.