chore: add tests for Angular 22 (#442)

* update deps, apply prettier, change to ESM, update tests

* update ci tests to use Node 22

* coderabbit 1

* remove exclude

* update lockfiles

* lint fixes

* fix prettier config

* fix npm ci

* coderabbit 2

* downgrade and pin angular

* update engine version range to match Angular

* fix version and readme

* update readme to suggest latest CLI

* add allowedHosts and trustedProxyHeaders

* regenrate lockfiles

* fix type for getContext

* update readme for deploy instructions

* prevent missing env vars from failing build

* fix for loop bug

* update swapped file templates

* fix context potentially being undefined

* consolidate app-engine exports in a single file

* conditionally update Angular config

* revert pathname to request

* fix typo

* fix merge conflicts

* match version of angular/ssr instead of core

* Update README.md

Co-authored-by: Michal Piechowiak <misiek.piechowiak@gmail.com>

* seperate version detection for angular/core and ssr

* update tests

* update failBuild message and remove dead code

* update readme

* allow specifying own hosts

* don't inject defaults when allowedHosts includes `*`

* allow trusting all proxy headers

* fix set logic

* fix type definition

* prettify

* remove unnecessary config options

* add fixtures for Angular 22

* add SSR test

* update demo to use Angular 22

* fix test

* fix typescript range

---------

Co-authored-by: Michal Piechowiak <misiek.piechowiak@gmail.com>

Author: hrishikesh-k

.github/actions/wait-for-deploy-preview/action.yml

@@ -0,0 +1,97 @@
+name: Wait for deploy preview
+description: Polls a GitHub commit status context until a deploy preview URL is available
+
+inputs:
+  status-context:
+    description: The commit status context to wait for (e.g. "netlify/edge/deploy-preview")
+    required: true
+  max-attempts:
+    description: Maximum number of polling attempts
+    required: false
+    default: '60'
+  poll-interval:
+    description: Seconds between polling attempts
+    required: false
+    default: '30'
+
+outputs:
+  deploy-url:
+    description: The deploy preview URL
+    value: ${{ steps.poll.outputs.deploy-url }}
+  deploy-host:
+    description: The deploy preview host (without protocol or path)
+    value: ${{ steps.poll.outputs.deploy-host }}
+
+runs:
+  using: composite
+  steps:
+    - id: poll
+      shell: bash
+      env:
+        STATUS_CONTEXT: ${{ inputs.status-context }}
+        SHA: ${{ github.event.pull_request.head.sha }}
+        REPO: ${{ github.repository }}
+        MAX_ATTEMPTS: ${{ inputs.max-attempts }}
+        POLL_INTERVAL: ${{ inputs.poll-interval }}
+      run: |
+        echo "Waiting for commit status '${STATUS_CONTEXT}' on ${SHA}..."
+
+        for i in $(seq 1 $MAX_ATTEMPTS); do
+          # All status entries for this context on this commit, newest first. We need the full
+          # history (not the rolled-up combined status) because the per-deploy id only appears on
+          # the earlier "processing" entry, not on the final "ready" one.
+          STATUS_LIST=$(gh api "repos/${REPO}/statuses/${SHA}" --jq "[.[] | select(.context == \"${STATUS_CONTEXT}\")]")
+
+          STATUS_STATE=$(echo "$STATUS_LIST" | jq -r 'first | .state // empty')
+          # target_url of the latest entry: once ready, this is the PR-level alias
+          # (deploy-preview-<pr>--<site>.<domain>), which is shared by every commit in the PR.
+          ALIAS_URL=$(echo "$STATUS_LIST" | jq -r 'first | .target_url // empty')
+
+          if [ "$STATUS_STATE" = "success" ]; then
+            echo "Deploy preview is ready!"
+            echo "  State: ${STATUS_STATE}"
+            echo "  Alias URL: ${ALIAS_URL}"
+
+            # The "processing" entry carries a per-deploy URL of the form
+            # https://app.netlify.com/projects/<site>/deploys/<deploy-id>. The deploy id is unique
+            # per commit, so we build a permalink from it to avoid the caching issues caused by
+            # reusing the shared deploy-preview-<pr>--<site> alias across commits.
+            DEPLOY_ID=$(echo "$STATUS_LIST" \
+              | jq -r 'map(select(.target_url // "" | test("/deploys/"))) | first | .target_url // empty' \
+              | sed -E 's|.*/deploys/||; s|[/?#].*||')
+
+            # Strip protocol and any path, leaving just the host (portable, no sed regex quirks).
+            ALIAS_HOST=${ALIAS_URL#*://}
+            ALIAS_HOST=${ALIAS_HOST%%/*}
+
+            if [ -n "$DEPLOY_ID" ] && printf '%s' "$ALIAS_HOST" | grep -q -- '--'; then
+              # Swap the alias label (before "--") for the deploy id, keeping the domain suffix so
+              # this works across environments (netlify.app, netlifystg.app, ...).
+              DOMAIN_SUFFIX=${ALIAS_HOST#*--}
+              DEPLOY_HOST="${DEPLOY_ID}--${DOMAIN_SUFFIX}"
+              DEPLOY_URL="https://${DEPLOY_HOST}"
+              echo "  Deploy id: ${DEPLOY_ID}"
+            else
+              echo "  Could not derive a permalink (deploy id: '${DEPLOY_ID:-none}'), falling back to alias URL"
+              DEPLOY_HOST="$ALIAS_HOST"
+              DEPLOY_URL="$ALIAS_URL"
+            fi
+
+            echo "  Deploy URL: ${DEPLOY_URL}"
+            echo "  Deploy host: ${DEPLOY_HOST}"
+
+            echo "deploy-url=${DEPLOY_URL}" >> "$GITHUB_OUTPUT"
+            echo "deploy-host=${DEPLOY_HOST}" >> "$GITHUB_OUTPUT"
+            exit 0
+          elif [ "$STATUS_STATE" = "failure" ] || [ "$STATUS_STATE" = "error" ]; then
+            echo "Deploy preview failed with state: ${STATUS_STATE}"
+            echo "  Target URL: ${ALIAS_URL}"
+            exit 1
+          fi
+
+          echo "Attempt ${i}/${MAX_ATTEMPTS}: status is '${STATUS_STATE:-not found}', waiting ${POLL_INTERVAL}s..."
+          sleep $POLL_INTERVAL
+        done
+
+        echo "Timed out waiting for deploy preview after $((MAX_ATTEMPTS * POLL_INTERVAL))s"
+        exit 1

.github/workflows/ssr.yml

@@ -0,0 +1,38 @@
+name: SSR Tests
+on:
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: read
+  statuses: read
+
+jobs:
+  ssr-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      - name: Wait for Angular Runtime demo deploy preview
+        id: deploy
+        uses: ./.github/actions/wait-for-deploy-preview
+        with:
+          status-context: 'netlify/angular-runtime-demo/deploy-preview'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v6
+        with:
+          node-version: 24
+          check-latest: true
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run SSR tests
+        run: node ./tests/ssr.js
+        env:
+          DEPLOY_URL: ${{ steps.deploy.outputs.deploy-url }}