diff --git a/.github/workflows/test-only.yml b/.github/workflows/test-only.yml
index 4ed3499d..3064e97d 100644
--- a/.github/workflows/test-only.yml
+++ b/.github/workflows/test-only.yml
@@ -30,7 +30,7 @@ jobs:
 
           # Selenium+browserless
           docker run --network changedet-network -d --hostname selenium  -p 4444:4444 --rm --shm-size="2g"  selenium/standalone-chrome:4
-          docker run --network changedet-network -d --hostname browserless -e "FUNCTION_BUILT_INS=[\"fs\",\"crypto\"]" -e "DEFAULT_LAUNCH_ARGS=[\"--window-size=1920,1080\"]" --rm  -p 3000:3000  --shm-size="2g"  browserless/chrome:1.60-chrome-stable
+          docker run --network changedet-network -d --name browserless --hostname browserless -e "FUNCTION_BUILT_INS=[\"fs\",\"crypto\"]" -e "DEFAULT_LAUNCH_ARGS=[\"--window-size=1920,1080\"]" --rm  -p 3000:3000  --shm-size="2g"  browserless/chrome:1.60-chrome-stable
           
           # For accessing custom browser tests
           docker run --network changedet-network -d --name browserless-custom-url --hostname browserless-custom-url -e "FUNCTION_BUILT_INS=[\"fs\",\"crypto\"]" -e "DEFAULT_LAUNCH_ARGS=[\"--window-size=1920,1080\"]" --rm --shm-size="2g"  browserless/chrome:1.60-chrome-stable
diff --git a/changedetectionio/run_custom_browser_url_tests.sh b/changedetectionio/run_custom_browser_url_tests.sh
index 1447c72c..c9c49b5f 100755
--- a/changedetectionio/run_custom_browser_url_tests.sh
+++ b/changedetectionio/run_custom_browser_url_tests.sh
@@ -1,10 +1,44 @@
 #!/bin/bash
 
-# exit when any command fails
-set -e
+# run some tests and look if the 'custom-browser-search-string=1' connect string appeared in the correct containers
+
 # enable debug
 set -x
 
+# A extra browser is configured, but we never chose to use it, so it should NOT show in the logs
+docker run --rm -e "PLAYWRIGHT_DRIVER_URL=ws://browserless:3000" --network changedet-network test-changedetectionio  bash -c 'cd changedetectionio;pytest tests/custom_browser_url/test_custom_browser_url.py::test_request_not_via_custom_browser_url'
+docker logs browserless-custom-url &>log.txt
+grep 'custom-browser-search-string=1' log.txt
+if [ $? -ne 0 ]
+then
+  echo "saw a request in 'browserless-custom-url' container with 'custom-browser-search-string=1' when I should not"
+  exit 1
+fi
+
+docker logs browserless &>log.txt
+grep 'custom-browser-search-string=1' log.txt
+if [ $? -ne 0 ]
+then
+  echo "saw a request in 'browser' container with 'custom-browser-search-string=1' when I should not"
+  exit 1
+fi
+
+# Special connect string should appear in the custom-url container, but not in the 'default' one
 docker run --rm -e "PLAYWRIGHT_DRIVER_URL=ws://browserless:3000" --network changedet-network test-changedetectionio  bash -c 'cd changedetectionio;pytest tests/custom_browser_url/test_custom_browser_url.py::test_request_via_custom_browser_url'
-docker logs browserless-custom-url
+docker logs browserless-custom-url &>log.txt
+grep 'custom-browser-search-string=1' log.txt
+if [ $? -ne 1 ]
+then
+  echo "Did not see request in 'browserless-custom-url' container with 'custom-browser-search-string=1' when I should"
+  exit 1
+fi
+
+docker logs browserless &>log.txt
+grep 'custom-browser-search-string=1' log.txt
+if [ $? -ne 0 ]
+then
+  echo "saw a request in 'browser' container with 'custom-browser-search-string=1' when I should not"
+  exit 1
+fi
+
 
diff --git a/changedetectionio/tests/custom_browser_url/test_custom_browser_url.py b/changedetectionio/tests/custom_browser_url/test_custom_browser_url.py
index f4557ecc..bfc2c95e 100644
--- a/changedetectionio/tests/custom_browser_url/test_custom_browser_url.py
+++ b/changedetectionio/tests/custom_browser_url/test_custom_browser_url.py
@@ -59,8 +59,6 @@ def do_test(client, live_server, make_test_use_extra_browser=False):
             },
             follow_redirects=True
         )
-        with open('/tmp/fuck.html' , 'wb') as f:
-            f.write(res.data)
 
         assert b"Updated watch." in res.data
         wait_for_all_checks(client)