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-rw-r--r--packages/website/ts/blockchain.ts4
1 files changed, 3 insertions, 1 deletions
diff --git a/packages/website/ts/blockchain.ts b/packages/website/ts/blockchain.ts
index fde134b18..5476fcf37 100644
--- a/packages/website/ts/blockchain.ts
+++ b/packages/website/ts/blockchain.ts
@@ -537,7 +537,9 @@ export class Blockchain {
}
public destroy(): void {
this._blockchainWatcher.destroy();
- this._injectedProviderObservable.unsubscribe(this._injectedProviderUpdateHandler);
+ if (this._injectedProviderObservable) {
+ this._injectedProviderObservable.unsubscribe(this._injectedProviderUpdateHandler);
+ }
this._stopWatchingExchangeLogFillEvents();
this._stopWatchingGasPrice();
}