diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 769de977..8838f091 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,8 +24,6 @@ jobs:
         os: [ubuntu-latest]
         test-type: ['unit']
     env:
-      BROWSER_STACK_USERNAME: ${{secrets.BROWSER_STACK_USERNAME}}
-      BROWSER_STACK_ACCESS_KEY: ${{secrets.BROWSER_STACK_ACCESS_KEY}}
       CI_TEST_TYPE: ${{matrix.test-type}}
     runs-on: ${{matrix.os}}
     steps:
diff --git a/scripts/karma.conf.js b/scripts/karma.conf.js
index ce98aab7..996e415a 100644
--- a/scripts/karma.conf.js
+++ b/scripts/karma.conf.js
@@ -8,7 +8,7 @@ module.exports = function(config) {
     coverage: false,
     browsers(aboutToRun) {
       return aboutToRun.filter(function(launcherName) {
-        return !(/^Safari/).test(launcherName);
+        return !(/^(Safari|Chromium)/).test(launcherName);
       });
     },
     browserstackLaunchers(defaults) {