diff --git a/.github/workflows/docker-drawio-desktop-headless.yaml b/.github/workflows/docker-drawio-desktop-headless.yaml
index e9c69a2..0f7d204 100644
--- a/.github/workflows/docker-drawio-desktop-headless.yaml
+++ b/.github/workflows/docker-drawio-desktop-headless.yaml
@@ -24,6 +24,13 @@ jobs:
         env:
           DOCKER_IMAGE: ${{ github.repository }}:${{ env.GITHUB_REF_SLUG }}
 
+      - name: Test docker image // Store output logs
+        uses: actions/upload-artifact@v3
+        with:
+          name: test-docker-image-logs
+          path: "tests/output/*.log"
+        if: ${{ failure() }}
+
   release:
     runs-on: ubuntu-latest
     needs: build
diff --git a/Dockerfile b/Dockerfile
index a259b8c..c628013 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,6 +12,7 @@ RUN set -e; \
   wget -q https://github.com/jgraph/drawio-desktop/releases/download/v${DRAWIO_VERSION}/drawio-amd64-${DRAWIO_VERSION}.deb \
   && apt-get install -y /opt/drawio-desktop/drawio-amd64-${DRAWIO_VERSION}.deb \
   && rm -rf /opt/drawio-desktop/drawio-amd64-${DRAWIO_VERSION}.deb; \
+  apt-get remove -y wget; \
   rm -rf /var/lib/apt/lists/*;
 
 COPY scripts/* ./
diff --git a/scripts/entrypoint.sh b/scripts/entrypoint.sh
index 14bde39..f207e91 100755
--- a/scripts/entrypoint.sh
+++ b/scripts/entrypoint.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-set -e
+set -euo pipefail
 
 # Start Xvfb
 export DISPLAY="${XVFB_DISPLAY}"
diff --git a/scripts/runner.sh b/scripts/runner.sh
index 25e0142..f940b61 100755
--- a/scripts/runner.sh
+++ b/scripts/runner.sh
@@ -1,15 +1,16 @@
 #!/usr/bin/env bash
-set -e
+set -euo pipefail
 
 if [ "${ELECTRON_DISABLE_SECURITY_WARNINGS}" == "true" ]; then
-  "$DRAWIO_DESKTOP_EXECUTABLE_PATH" "$@" --no-sandbox 3>&1 >&2 2>&3 3>&- |
+  "$DRAWIO_DESKTOP_EXECUTABLE_PATH" "$@" --no-sandbox 2>&1 |
     grep -v "Failed to connect to socket" |
     grep -v "Could not parse server address" |
     grep -v "Floss manager not present" |
     grep -v "Exiting GPU process" |
     grep -v "called with multiple threads" |
     grep -v "extension not supported" |
-    grep -v "Failed to send GpuControl.CreateCommandBuffer"
+    grep -v "Failed to send GpuControl.CreateCommandBuffer" |
+    grep -v "Init observer found at shutdown"
 else
   "$DRAWIO_DESKTOP_EXECUTABLE_PATH" "$@" --no-sandbox 2>&1
 fi
diff --git a/tests/base.bats b/tests/base.bats
index a44ac6d..4bfd975 100755
--- a/tests/base.bats
+++ b/tests/base.bats
@@ -11,10 +11,11 @@ docker_test() {
   shift
   run docker container run -t $docker_opts -w /data -v $(pwd)/${data_folder:-}:/data ${DOCKER_IMAGE} "$@"
 
-  echo "$output" > "tests/output/$output_file.log"
+  # Remove timed logging tags on electron logs by default.
+  echo "$output" | tee "tests/output/$output_file.log" | sed 's#\[.*:.*/.*\..*:.*:.*\(.*\)\] ##' >"tests/output/$output_file-comp.log"
 
   [ "$status" -eq $status ]
   if [ -f "tests/expected/$output_file.log" ]; then
-    [ "$(diff --strip-trailing-cr <(echo "$output") "tests/expected/$output_file.log")" = "" ]
+    [ "$(diff --strip-trailing-cr "tests/output/$output_file-comp.log" "tests/expected/$output_file.log")" = "" ]
   fi
 }
diff --git a/tests/expected/output-electron-security-warning.log b/tests/expected/output-electron-security-warning.log
new file mode 100644
index 0000000..88dc048
--- /dev/null
+++ b/tests/expected/output-electron-security-warning.log
@@ -0,0 +1,12 @@
+Failed to connect to the bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory
+Failed to connect to the bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory
+Failed to connect to the bus: Could not parse server address: Unknown address type (examples of valid types are "tcp" and on UNIX "unix")
+Failed to connect to the bus: Could not parse server address: Unknown address type (examples of valid types are "tcp" and on UNIX "unix")
+Failed to connect to the bus: Could not parse server address: Unknown address type (examples of valid types are "tcp" and on UNIX "unix")
+Failed to connect to the bus: Could not parse server address: Unknown address type (examples of valid types are "tcp" and on UNIX "unix")
+Floss manager not present, cannot set Floss enable/disable.
+Exiting GPU process due to errors during initialization
+InitializeSandbox() called with multiple threads in process gpu-process.
+dri3 extension not supported.
+ContextResult::kTransientFailure: Failed to send GpuControl.CreateCommandBuffer.
+file1.drawio -> file1.pdf
diff --git a/tests/output.bats b/tests/output.bats
index eab12cf..52c9dbb 100755
--- a/tests/output.bats
+++ b/tests/output.bats
@@ -6,6 +6,6 @@
   docker_test "" 1 "output-unknown-file" "tests/data" -x unknown.drawio
 }
 
-#@test "Output electron security warning" {
-#  docker_test "-e ELECTRON_DISABLE_SECURITY_WARNINGS=false" 0 "output-electron-security-warning" "tests/data" -x file1.drawio
-#}
+@test "Output electron security warning" {
+  docker_test "-e ELECTRON_DISABLE_SECURITY_WARNINGS=false" 0 "output-electron-security-warning" "tests/data" -x file1.drawio
+}