Build with proxy

.github/workflows/build.yml

@@ -107,10 +107,38 @@ jobs:
               exit 1
             fi
 
+  build_proxy:
+    name: Build with proxy
+    runs-on: ubuntu-latest
+    services:
+      squid:
+        image: ubuntu/squid:5.2-22.04_beta
+        ports:
+          - 3128:3128
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: 14.x
+          registry-url: "https://registry.npmjs.org"
+      - run: |
+          node --version
+          npm --version
+          export http_proxy=http://localhost:3128 https_proxy=http://localhost:3128
+          npm ci
+        name: Install npm dependencies
+      - run: |
+          set -euo pipefail
+          sudo apt-get update
+          sudo apt-get install -y libnss3
+        name: Install OS dependencies
+      - run: ./test-driver.sh
+        name: Verify install
+
   publish:
     name: Publish to npm
     runs-on: ubuntu-latest
-    needs: [build, build_arm64]
+    needs: [build, build_arm64, build_proxy]
     if: success() && startsWith(github.ref, 'refs/tags/')
     steps:
       - uses: actions/checkout@v2