Full-code app stuck blank after raw_app flag flipped to false via generic update endpoint — no UI pa
I have a full-code app (React) at path f/Buchhaltung_Automation (self-hosted Windmill). It rendered fine for many deployed versions. After deploying two content-only backend-script changes (versions 25 and 26), the app now renders a completely blank/black screen when opened.
Confirmed root cause:
- Comparing deployed versions via
-> Version 24 (last working):
-> Version 25 and 26 (current):
- The frontend source files (
- The browser console shows this error when opening the app:
What deployed v25 with
Confirmed root cause:
- Comparing deployed versions via
GET /api/w/{workspace}/apps/get/v/{id}:GET /api/w/{workspace}/apps/get/v/{id}:-> Version 24 (last working):
"raw_app": true"raw_app": true-> Version 25 and 26 (current):
"raw_app": false"raw_app": false- The frontend source files (
/App.tsx, /index.tsx, /index.css, /package.json/App.tsx, /index.tsx, /index.css, /package.json) are byte-identical across v24, v25, and v26 — confirmed via direct comparison. Only the raw_appraw_app flag differs.- The browser console shows this error when opening the app:
TypeError: Cannot read properties of undefined (reading 'map')thrown from Windmill's own app-viewer chunks — consistent with the viewer taking the low-code (
value.gridvalue.grid) render path because raw_appraw_app is falsefalse, while value.gridvalue.grid doesn't exist (this app only has value.filesvalue.files + value.runnablesvalue.runnables, the full-code shape).What deployed v25 with
raw_app: false raw_app: false: Versions 25/26 were deployed through a generic app-update call (not the dedicated raw/full-code update endpoint POST /w/{workspace}/apps/update_raw/{path}POST /w/{workspace}/apps/update_raw/{path}). That generic path appears to silently reset raw_appraw_app to falsefalse even when updating an app that was previously raw_app: trueraw_app: true.
