diff --git a/.github/workflows/docs_update.yml b/.github/workflows/docs_update.yml
index e62fd66c10..0174d15281 100644
--- a/.github/workflows/docs_update.yml
+++ b/.github/workflows/docs_update.yml
@@ -20,13 +20,26 @@ jobs:
         run: |
           sudo apt-get -q -o=Dpkg::Use-Pty=0 -y install doxygen graphviz
 
+      - name: Customize for online docs
+        working-directory: docs/doxygen
+        run: |
+          sed -i'' -e "s@<!--EXTRA FOOTER SCRIPT-->@<script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-794025-2', 'auto');ga('send', 'pageview');</script>@" \
+            custom_footer.html
+
       - name: Generate documentation
         working-directory: docs/doxygen
         run: |
           ./regen.sh php
+          if [[ -s doxygen.log ]]; then
+            echo '*** There were warnings during docs generation: ***'
+            echo '-----------------------------------------------------------'
+            cat doxygen.log
+            echo '-----------------------------------------------------------'
+            exit 1
+          fi
 
       - name: Upload
-        if: github.repository_owner == 'wxWidgets'
+        if: github.ref == 'refs/heads/master'
         working-directory: docs/doxygen
         env:
           DOCS_WEBSITE_KEY: ${{secrets.DOCS_WEBSITE_KEY}}
@@ -36,5 +49,4 @@ jobs:
           echo "$DOCS_WEBSITE_KEY" > "$HOME/.ssh/docs_website_key"
           chmod 600 "$HOME/.ssh/docs_website_key"
           echo "$DOCS_WEBSITE_SSH_CONFIG" > "$HOME/.ssh/config"
-          rsync --checksum --compress --delete --recursive --verbose
-            out/html/ wxdocs:public_html/latest/
+          rsync --checksum --compress --delete --recursive --verbose out/html/ wxdocs:public_html/latest/
diff --git a/docs/doxygen/custom_footer.html b/docs/doxygen/custom_footer.html
index 3f0f302765..7bacc10432 100644
--- a/docs/doxygen/custom_footer.html
+++ b/docs/doxygen/custom_footer.html
@@ -19,6 +19,8 @@
 
 <script src="wxwidgets.js" type="text/javascript"></script>
 
+<!--EXTRA FOOTER SCRIPT-->
+
 </div><!-- #page_container -->
 </body>
-</html>
\ No newline at end of file
+</html>