With build.bytecode enabled, apps crash at launch on Electron 42 (V8 14.8)
with "Invalid or incompatible cached data (cachedDataRejected)". Electron 41
(V8 14.6) is unaffected, on the same machine and arch.
On V8 14.8 the code cache is bound to a per-process-type snapshot/isolate
checksum AND flag hash (electron/electron#51831 gives each process type its
own Node startup snapshot), and vm.Script no longer runs a cache when the
loader supplies a placeholder source.
Fix: compile each chunk in the Electron process type that will consume it,
via vm.compileFunction:
- main chunks -> the browser (main) process
- preload chunks -> a renderer process (a hidden window whose sandbox:false
preload compiles the chunk)
Load via vm.compileFunction under --no-lazy, which runs the cache and ignores
the placeholder body (made unique per file to avoid V8 compilation-cache
collisions). No header bytes are patched, so an incompatible cache fails
loudly instead of corrupting execution.
Note: bytecode compilation now spawns Electron processes (a main process, and
a hidden window for the preload). On Windows this works without an interactive
desktop (e.g. over SSH); on Linux a display may be required (e.g. xvfb).
The `clearLine` and `writeLine` helpers use TTY-only methods (`clearLine`, `cursorTo`,
`moveCursor`) without checking `process.stdout.isTTY`, causing builds to crash in
non-interactive environments like CI or piped output.
See error I got in my CI environment:
```
vite v7.3.1 building ssr environment for production...
✗ Build failed in 7ms
✓ 0 modules transformed.
✗ Build failed in 9ms
error during build:
[vite:isolate-entries] Could not load virtual:isolate-entries:
[vite:transform-reporter] process.stdout.clearLine is not a function
```
