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fix: swap stripPrefix and addPrefix middleware order in Traefik domain config

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When both stripPath and internalPath are configured, addPrefix was pushed
before stripPrefix causing incorrect path rewriting (e.g. /app/v2/public/api
instead of /app/v2/api). Traefik executes middlewares in array order, so
stripPrefix must come first.

Closes #4061
This commit is contained in:
Mauricio Siu
2026-04-09 17:35:42 -06:00
parent a30617d85d
commit f8eb3c2b76
2 changed files with 27 additions and 5 deletions
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12
packages/server/src/utils/traefik/domain.ts
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@@ -151,16 +151,18 @@ export const createRouterConfig = async (
routerConfig.middlewares?.push("redirect-to-https");
} else {
// Add path rewriting middleware if needed
if (internalPath && internalPath !== "/" && internalPath !== path) {
const pathMiddleware = `addprefix-${appName}-${uniqueConfigKey}`;
routerConfig.middlewares?.push(pathMiddleware);
}
// stripPrefix must come before addPrefix so Traefik strips the
// public path first, then prepends the internal path.
if (stripPath && path && path !== "/") {
const stripMiddleware = `stripprefix-${appName}-${uniqueConfigKey}`;
routerConfig.middlewares?.push(stripMiddleware);
}
if (internalPath && internalPath !== "/" && internalPath !== path) {
const pathMiddleware = `addprefix-${appName}-${uniqueConfigKey}`;
routerConfig.middlewares?.push(pathMiddleware);
}
// redirects - skip for preview deployments as wildcard subdomains
// should not inherit parent redirect rules (e.g., www-redirect)
if (domain.domainType !== "preview") {