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fix: SPA fallback for all frontend routes, not just /home/*

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After migrating from Next.js to Vite SPA, routes like /auth/space/callback
returned 404 because the static file server only had SPA fallback for /home/*.
Now all non-API routes fall back to index.html for React Router to handle.
This commit is contained in:
RockChinQ
2026-04-08 02:07:20 +08:00
parent 4621e6cc9f
commit 71ac719aee
1 changed files with 15 additions and 16 deletions
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31
src/langbot/pkg/api/http/controller/main.py
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@@ -105,23 +105,22 @@ class HTTPController:
):
if os.path.exists(os.path.join(frontend_path, path + '.html')):
path += '.html'
elif path.startswith('home/'):
# SPA fallback for /home/* sub-routes.
# Entity detail views use query params (e.g. /home/bots?id=uuid),
# so the pre-rendered list page is served directly via path + '.html'.
# This fallback handles any remaining unmatched sub-paths.
segments = path.rstrip('/').split('/')
elif not path.startswith('api/'):
# SPA fallback: serve index.html for all non-API, non-static routes
# so that React Router can handle client-side routing (Vite SPA).
# For /home/* sub-routes, first try parent .html files (pre-rendered pages).
if path.startswith('home/'):
segments = path.rstrip('/').split('/')
for i in range(len(segments) - 1, 0, -1):
parent_path = '/'.join(segments[:i]) + '.html'
if os.path.exists(os.path.join(frontend_path, parent_path)):
response = await quart.send_from_directory(frontend_path, parent_path, mimetype='text/html')
response.headers['Cache-Control'] = 'no-cache, no-store, must-revalidate'
response.headers['Pragma'] = 'no-cache'
response.headers['Expires'] = '0'
return response
# Walk up parent segments looking for matching .html files
for i in range(len(segments) - 1, 0, -1):
parent_path = '/'.join(segments[:i]) + '.html'
if os.path.exists(os.path.join(frontend_path, parent_path)):
response = await quart.send_from_directory(frontend_path, parent_path, mimetype='text/html')
response.headers['Cache-Control'] = 'no-cache, no-store, must-revalidate'
response.headers['Pragma'] = 'no-cache'
response.headers['Expires'] = '0'
return response
# Final fallback to index.html for /home/* routes
# Fallback to index.html for SPA client-side routing
response = await quart.send_from_directory(frontend_path, 'index.html', mimetype='text/html')
response.headers['Cache-Control'] = 'no-cache, no-store, must-revalidate'
response.headers['Pragma'] = 'no-cache'