don't test chrome browser tests on linux
diff --git a/buildkite/pipelines/rules_typescript-postsubmit.json b/buildkite/pipelines/rules_typescript-postsubmit.json
index dc226c3..6c74204 100644
--- a/buildkite/pipelines/rules_typescript-postsubmit.json
+++ b/buildkite/pipelines/rules_typescript-postsubmit.json
@@ -1,7 +1,7 @@
 {
   "platforms": {
-    "ubuntu1404": {"run_targets": ["@yarn//:yarn"], "build_targets": ["..."], "test_targets": ["..."]},
-    "ubuntu1604": {"run_targets": ["@yarn//:yarn"], "build_targets": ["..."], "test_targets": ["..."]},
+    "ubuntu1404": {"run_targets": ["@yarn//:yarn"], "build_targets": ["..."], "test_flags": ["--test_tag_filters=-browser:Chrome"], "test_targets": ["..."]},
+    "ubuntu1604": {"run_targets": ["@yarn//:yarn"], "build_targets": ["..."], "test_flags": ["--test_tag_filters=-browser:Chrome"], "test_targets": ["..."]},
     "macos": {"run_targets": ["@yarn//:yarn"], "build_targets": ["..."], "test_targets": ["..."]}
   }
 }