Test JS threads

.github/workflows/OCV-Nightly-docs-js.yaml

@@ -30,7 +30,7 @@ jobs:
         branch: ['3.4', '4.x', '5.x']
     container:
       image: quay.io/opencv-ci/opencv-docs-js-20.04:20220728
-      options: --user ci
+      options: --user root
     steps:
     - name: Define proper HOME path
       timeout-minutes: 60
@@ -44,7 +44,7 @@ jobs:
     - name: Clone opencv_contrib
       timeout-minutes: 60
       run: git clone --single-branch --branch ${{ matrix.branch }} https://github.com/opencv/opencv_contrib.git $HOME/opencv_contrib
-    - name: Build js
+    - name: Build js (default)
       timeout-minutes: 60
       run: |
         cd $HOME/build
@@ -56,6 +56,23 @@ jobs:
         cd $HOME/build/js/bin
         npm install
         node tests.js
+    - name: Build js (threads)
+      timeout-minutes: 60
+      run: |
+        cd $HOME/build
+        emcmake python ../opencv/platforms/js/build_js.py js_threads --build_wasm --build_test --threads
+    - name: Run js tests (threads)
+      timeout-minutes: 60
+      if: ${{ always() && matrix.branch == '4.x' }}
+      run: |
+        apt-get update
+        apt-get install -y libx11-xcb1 libxcomposite1 libasound2 libatk1.0-0 libatk-bridge2.0-0 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgbm1 libgcc1 libglib2.0-0 libgtk-3-0 libnspr4 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 
+
+        cd $HOME/build/js_threads/bin
+        chmod 777 -R .
+        npm install
+        npm install --no-save [email protected]
+        node run_puppeteer.js    
     - name: Configure OpenCV doxygen
       timeout-minutes: 60
       run: |