### The problem
Right now we use a catchall path in Vercel routing config to rewrite all
requests that don't match existing assets to `/index.html`, which is
needed for client side routing to work. This, however, messes up 404
errors for truly non-existing files which won't be handled by the SPA,
because they get redirected to index.html.
Even worse, this interacts very poorly with caching. Normally if we
request a non-existent file, then put the file in place, and request the
file again, we'll get 404 the first time and the actual file the second
time. However, in our case we instead return `/index.html` after the
first attempt and cache that response, making it impossible to correct a
missing file without cache flush.
### The solution
One way to fix this is to make the regex in Vercel config precise, so
that they only match our SPA routes. However, it can be dangerous,
because this means we'll need to manually update the config with new SPA
routes every time we add any. This PR tests that regexes we're using in
Vercel match all routes that we set in the SPA router.
### Potential future improvements
It's very possible to generate Vercel's config from React Router routing
objects, but at the moment it's not done because that would require
importing most of dotcom during the build phase, which seem to cause
errors.
### Change Type
- [x] `internal` — Any other changes that don't affect the published
package[^2]
### Test Plan
1. Might need a light smoke test after deployment to dotcom.
- [x] End to end tests
A few things happening here
- Delete our service worker. Turns out that a couple of years back
browsers decided that a service worker is no longer required for a PWA
so you can just have the manifest and still install on the user's
device.
- Cache tldraw's assets as part of the dotcom vite asset pipeline. This
allows them to participate in the asset coalescing (preserving old
versions of asset files so old clients don't stop working when you
deploy new versions of things, see
https://github.com/tldraw/brivate/pull/3132 for more context).
- Add a new 'imports.vite.js' file to the assets package, because we
import a bunch of json translation files, and vite imports .json files
as parsed json objects instead of string urls, and there's no good way
to tell it not to. Even if there was we wouldn't want to impose that
config on our users. So another way to tell vite to load any asset as a
url string is to append `?url` to the end of the import path. That's
what this file does.
closes [#2486](https://github.com/tldraw/tldraw/issues/2486)
### Change Type
- [x] `minor` — New feature
[^1]: publishes a `patch` release, for devDependencies use `internal`
[^2]: will not publish a new version
### Release Notes
- Fix 'could not load assets' error that we often see on tldraw.com
after a deploy
This PR moves the tldraw.com app into the public repo.
### Change Type
- [x] `internal` — Any other changes that don't affect the published
package[^2]
---------
Co-authored-by: Dan Groshev <git@dgroshev.com>
Co-authored-by: alex <alex@dytry.ch>
