diff --git a/.github/workflows/CI_emscripten.yml b/.github/workflows/CI_emscripten.yml
index bf4bed5d0f2..6c501e033c0 100644
--- a/.github/workflows/CI_emscripten.yml
+++ b/.github/workflows/CI_emscripten.yml
@@ -203,6 +203,7 @@ jobs:
       built-commit-sha: ${{ needs.web-build.outputs.WZ_GITHUB_SHA }}
       release: false
       ssh-dest-host: ${{ vars.WZ_WEB_BUILD_UPLOAD_SSH_HOST }}
+      cdn-purge-base-url: 'play.wz2100.net/dev'
     secrets: inherit
   
   publish_release_build:
@@ -224,4 +225,5 @@ jobs:
       built-commit-sha: ${{ needs.web-build.outputs.WZ_GITHUB_SHA }}
       release: true
       ssh-dest-host: ${{ vars.WZ_WEB_BUILD_UPLOAD_SSH_HOST }}
+      cdn-purge-base-url: 'play.wz2100.net/release'
     secrets: inherit
diff --git a/.github/workflows/publish_web_build.yml b/.github/workflows/publish_web_build.yml
index f94989635ff..bd61c4bd0f6 100644
--- a/.github/workflows/publish_web_build.yml
+++ b/.github/workflows/publish_web_build.yml
@@ -30,6 +30,10 @@ on:
         description: 'The destination HOST for the rsync'
         required: true
         type: string
+      cdn-purge-base-url:
+        description: 'The base URL for CDN cache purging'
+        required: false
+        type: string
     secrets:
       WZ_WEB_BUILD_UPLOAD_SSH_KEY:
         required: true
@@ -52,6 +56,7 @@ jobs:
           WASM_ARCHITECTURE: ${{ inputs.architecture }}
           WZ_GITHUB_REF: ${{ inputs.built-ref }}
           WZ_IS_RELEASE: ${{ inputs.release }}
+          INPUT_CDN_PURGE_BASE_URL: ${{ inputs.cdn-purge-base-url }}
         run: |
           mkdir dl-archive
           CHANGELOG_DIR="${GITHUB_WORKSPACE}/temp/changes"
@@ -67,7 +72,7 @@ jobs:
           if [ "${WASM_ARCHITECTURE}" == "wasm32" ]; then
             WZ_UPLOAD_SUBDIR=""
           fi
-          # Determine upload path
+          # Determine upload path - always starts with a slash
           if [ "${WZ_IS_RELEASE}" == "true" ]; then
             SOURCE_TAG="${WZ_GITHUB_REF#refs/tags/}"
             WZ_UPLOAD_PATH="/${SOURCE_TAG}/${WZ_UPLOAD_SUBDIR}"
@@ -76,6 +81,10 @@ jobs:
           fi
           echo "WZ_UPLOAD_PATH=${WZ_UPLOAD_PATH}" >> $GITHUB_ENV
           echo "WZ_UPLOAD_PATH=${WZ_UPLOAD_PATH}" >> $GITHUB_OUTPUT
+          # Determine base CDN url path (remove any trailing slashes)
+          WZ_CDN_BASE_URL="$(echo "${INPUT_CDN_PURGE_BASE_URL}" | sed 's:/*$::')"
+          echo "WZ_CDN_BASE_URL=${WZ_CDN_BASE_URL}" >> $GITHUB_ENV
+          echo "WZ_CDN_BASE_URL=${WZ_CDN_BASE_URL}" >> $GITHUB_OUTPUT
       - name: Download Archive Artifact
         uses: actions/download-artifact@v4
         with:
@@ -138,6 +147,7 @@ jobs:
           rm ~/.ssh/id_ed25519
       - name: 'Generate Cloudflare Cache Purge URLs List'
         id: purgeurls
+        if: ${{ success() && env.WZ_CDN_BASE_URL != '' }}
         env:
           CHANGED_FILES_LIST: '${{ steps.fileslist.outputs.CHANGED_FILES_LIST }}'
           CHANGED_SW_LIST: '${{ steps.fileslist.outputs.CHANGED_SW_LIST }}'
@@ -156,12 +166,13 @@ jobs:
             exit 1
           fi
           # Run the gen_purge_url_batches script on the main list
-          python3 "./gen_purge_url_batches.py" "play.wz2100.net" "${CHANGED_FILES_LIST}" "${PURGE_URLS_DATA_FILES_DIR}"
+          python3 "./gen_purge_url_batches.py" "${WZ_CDN_BASE_URL}${WZ_UPLOAD_PATH}" "${CHANGED_FILES_LIST}" "${PURGE_URLS_DATA_FILES_DIR}"
           echo "PURGE_URLS_DATA_FILES_DIR=${PURGE_URLS_DATA_FILES_DIR}" >> $GITHUB_OUTPUT
           # Run the gen_purge_url_batches script on the service-worker file list
-          python3 "./gen_purge_url_batches.py" "play.wz2100.net" "${CHANGED_SW_LIST}" "${PURGE_SERVICEWORKER_URLS_DATA_FILES_DIR}"
+          python3 "./gen_purge_url_batches.py" "${WZ_CDN_BASE_URL}${WZ_UPLOAD_PATH}" "${CHANGED_SW_LIST}" "${PURGE_SERVICEWORKER_URLS_DATA_FILES_DIR}"
           echo "PURGE_SERVICEWORKER_URLS_DATA_FILES_DIR=${PURGE_SERVICEWORKER_URLS_DATA_FILES_DIR}" >> $GITHUB_OUTPUT
       - name: 'Purge Cloudflare Cache'
+        if: ${{ success() && env.WZ_CDN_BASE_URL != '' }}
         env:
           CLOUDFLARE_ZONE: ${{ secrets.CLOUDFLARE_WZ2100_ZONE }}
           CLOUDFLARE_CACHEPURGE_TOKEN: ${{ secrets.CLOUDFLARE_WZ2100_CACHEPURGE_TOKEN }}