# Which Problems Are Solved The `/.well-known/apple-app-site-association` and `/.well-known/assetlinks.json` responses are instance specific: the body depends on the requested host. The responses did not declare this, so a shared cache whose cache key does not include the host could store one instance's file and serve it on another instance's domain. This could result in a wrong or empty file being returned intermittently, breaking native passkey verification. Dropping the `public` directive (#12634) was not sufficient: depending on its cache mode, a shared cache may store any response carrying a `max-age`. The docs page for native app links also still documented the old `Cache-Control: public` header and only the single `get_login_creds` relation (missing `handle_all_urls`, added in #12634). # How the Problems Are Solved - Send **`Vary: Host`** on both well-known responses, declaring that the body depends on the host: a spec-compliant shared cache must store per-host variants or skip caching. Clients addressing a single host (the Apple and Google verifiers, browsers) are unaffected and keep honoring the configured `max-age`. - Correct the outdated caching reasoning in the code comments. - Guard the header with unit and integration tests. - Update the native app links docs page: both Digital Asset Links relations and the current response headers. # Additional Changes None. `WellKnown.AppLinksCacheControlMaxAge` behavior is unchanged (`0` still results in `no-store`). # Additional Context - Follow-up to #12634; relates to #12497. - Verified with interleaved requests against two instances: responses are no longer reused across domains, and each domain consistently serves its own configuration. - To be cherry-picked to `v4.x` from `main` once merged. 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Fable 5 <[email protected]>
@zitadel/docs
Documentation for Zitadel, built with Fumadocs and Next.js.
Getting Started
Ensure you have followed the root quick start to set up dependencies.
Local Development
Ensure all dependencies are installed:
pnpm install
Start the development server:
pnpm nx run @zitadel/docs:dev
The site will be available at http://localhost:3000.
Scripts
Key scripts for documentation workflows:
| Script | Description |
|---|---|
dev |
Starts the development server. |
build |
Builds the production application. |
fetch:remote-content |
Fetches remote tags and referenced content. |
generate |
Runs all generation steps (fetch:remote-content, generate:proto-docs, generate:api-reference, generate:index-pages). |
check:links |
Validates content integrity (broken links, missing frontmatter, schema errors). |
check-types |
Validates typescript types. |
test |
Runs all validation steps (check-types, check:links). |
lint |
checks for code style and syntax errors (ESLint). |
clean |
Cleans the build output and generated files. |
Validation
- Code Quality: Run
pnpm nx run @zitadel/docs:lintto check for syntax and style issues in JS/TS/MDX files. - Content Integrity: Run
pnpm nx run @zitadel/docs:check-linksto validate content structure, including:- Broken internal links
- Missing required front-matter (e.g.,
title) - Image references
Troubleshooting
Issue: Nx configuration not found or "nx" command not found
If you see errors like:
NX Cannot find configuration for task @zitadel/zitadel:@zitadel/docs:generate
Pass --verbose to see the stacktrace.
or
pnpm nx run @zitadel/docs:dev
ERR_PNPM_RECURSIVE_EXEC_FIRST_FAIL Command "nx" not found
Did you mean "pnpm nx"?
Root cause: Your dependency cache or node_modules is out of sync.
Solution: Run these commands from the repository root in order:
- Clear node_modules:
rm -rf node_modules— removes the installed dependency folder - Clear pnpm cache:
pnpm cache delete— clears pnpm's internal package cache - Reinstall dependencies:
pnpm install— reinstalls all dependencies fresh - Test the setup:
pnpm nx run @zitadel/docs:generate— verifies everything works
This resolves 99% of setup-related issues.
Contributing
Build Process
The docs build process automatically handles the following steps via generate:
- Downloads required protoc plugins.
- Generates gRPC documentation from proto files.
- Generates API documentation from OpenAPI specs.
- Generates index files for directory structures.
Style Guide
- Variables: Use environment variables in code snippets where possible.
- Embedded Content: Use
_filename.mdxfor content embedded in other pages (not indexed individually). - Code Embedding: Use the
fileproperty in code blocks to embed code from the repo. - Voice: Use active voice and sentence case for titles.
Refer to the Google Developer Style Guide for general guidelines.
Adding Content
All documentation content is located in the content directory. Note that the system strictly accepts only .mdx files.
To add a new page:
- Create a
.mdxfile in the appropriate subdirectory ofcontent. - Register the new page in the sidebar settings at
lib/sidebar-data.tsto make it accessible in the navigation.
Pull Requests
Use docs(<scope>): <short summary> for PR titles.
Pass quality checks before submitting:
pnpm nx run @zitadel/docs:build