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-rw-r--r--packages/0x.js/src/order_watcher/event_watcher.ts4
1 files changed, 4 insertions, 0 deletions
diff --git a/packages/0x.js/src/order_watcher/event_watcher.ts b/packages/0x.js/src/order_watcher/event_watcher.ts
index 43a60957b..5d05bfb60 100644
--- a/packages/0x.js/src/order_watcher/event_watcher.ts
+++ b/packages/0x.js/src/order_watcher/event_watcher.ts
@@ -51,6 +51,10 @@ export class EventWatcher {
}
private async _pollForBlockchainEventsAsync(callback: EventWatcherCallback): Promise<void> {
const pendingEvents = await this._getEventsAsync();
+ if (_.isUndefined(pendingEvents)) {
+ // HACK: This should never happen, but happens frequently on CI due to a ganache bug
+ return;
+ }
if (pendingEvents.length === 0) {
// HACK: Sometimes when node rebuilds the pending block we get back the empty result.
// We don't want to emit a lot of removal events and bring them back after a couple of miliseconds,