Re-try to start WebDriver on failure

.github/workflows/test.yaml

@@ -133,7 +133,46 @@ jobs:
       - name: Start and set WebDriver
         if: matrix.driver.browser == true
         run: |
-          ${{ matrix.driver.binary }} --port=9000 &
+          iteration=5
+
+          while true; do
+            if (( iteration == 0 )); then
+              echo "CI: Failed to start driver."
+              exit 1
+            fi
+
+            (( iteration-- ))
+
+            ${{ matrix.driver.binary }} --port=9000 >stdout 2>stderr &
+            process_pid=$!
+            
+            while true; do
+              if [[ $(wc -l < stderr) -gt 0 ]]; then
+                echo "CI: WebDriver failed"
+                kill -SIGKILL $process_pid
+                echo
+
+                echo "CI: stdout:"
+                sed 's/^/CI:    /' stdout
+                echo
+                echo "CI: stderr:"
+                sed 's/^/CI:    /' stderr
+                echo
+
+                echo "CI: Re-trying to start the WebDriver."
+
+                break
+              fi
+
+              if [[ $(wc -l < stdout) -gt 0 ]]; then
+                break 2
+              fi
+            done
+          done
+
+          tail -f stdout >&1 &
+          tail -f stderr >&2 &
+
           echo "${{ matrix.driver.env }}_REMOTE=http://127.0.0.1:9000" >> $GITHUB_ENV
       - name: Set environment
         if: matrix.environment.name != ''