feat(worker): add MessageEvent, ErrorEvent and handling to Worker API (#4391)

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/cli/tests/subdir/event_worker.js b/cli/tests/subdir/event_worker.js
new file mode 100644
index 000000000..849b6026c
--- /dev/null
+++ b/cli/tests/subdir/event_worker.js
@@ -0,0 +1,7 @@
+onmessage = function (e) {
+  if (e.data === "boom") {
+    throw new Error("boom error!");
+  }
+
+  postMessage(e.data);
+};