Cache-busting : assets versionnés (?v=model_version) + pages HTML no-cache

Le navigateur gardait l'ancien CSS/JS (aucun Cache-Control). Les pages sont
maintenant servies no-cache avec les URLs d'assets versionnées à la volée —
chaque release devient visible immédiatement.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Simon-Pierre Boucher committed 2 mo ago (Sep 1, 2026) parent f35ab91 Browse files

1 changed file +26 −1

modified backend/app/main.py +26 −1

				`@@ -87,12 +87,37 @@ def health():`
87	PAGES = ["index", "aujourdhui", "carte", "circonscriptions", "sondages",	87	PAGES = ["index", "aujourdhui", "carte", "circonscriptions", "sondages",
88	"signaux", "simulateur", "intelligence", "methodologie", "backtest",	88	"signaux", "simulateur", "intelligence", "methodologie", "backtest",
89	"admin"]	89	"admin"]
		90	+
		91	+# Cache-busting : la version du modèle est injectée dans les URLs d'assets
		92	+# (style.css?v=…, app.js?v=…) et les pages HTML sont servies en no-cache —
		93	+# chaque release est visible immédiatement, sans vider le cache du navigateur.
		94	+_page_cache: dict[str, tuple[float, str]] = {}
		95	+
		96	+
		97	+def _render_page(name: str) -> str:
		98	+ f = FRONTEND_DIR / f"{name}.html"
		99	+ mtime = f.stat().st_mtime
		100	+ cached = _page_cache.get(name)
		101	+ if cached and cached[0] == mtime:
		102	+ return cached[1]
		103	+ html = f.read_text()
		104	+ v = settings.model_version
		105	+ html = html.replace('href="/assets/style.css"',
		106	+ f'href="/assets/style.css?v={v}"')
		107	+ html = html.replace('src="/assets/app.js"',
		108	+ f'src="/assets/app.js?v={v}"')
		109	+ _page_cache[name] = (mtime, html)
		110	+ return html
		111	+
		112	+
90	for page in PAGES:	113	for page in PAGES:
91	path = "/" if page == "index" else f"/{page}"	114	path = "/" if page == "index" else f"/{page}"
92		115
93	def make_handler(p=page):	116	def make_handler(p=page):
94	def handler():	117	def handler():
95	− return FileResponse(FRONTEND_DIR / f"{p}.html")	118	+ from fastapi.responses import HTMLResponse
		119	+ return HTMLResponse(_render_page(p),
		120	+ headers={"Cache-Control": "no-cache"})
96	return handler	121	return handler
97	app.get(path, include_in_schema=False)(make_handler())	122	app.get(path, include_in_schema=False)(make_handler())
98		123
99		124

spb/qc-election

Cache-busting : assets versionnés (?v=model_version) + pages HTML no-cache

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