Fix bug where web worker would not send response when creating a new database successfully

indexedDb/impl/channels/callbacks.go

@@ -77,7 +77,7 @@ func (m *manager) newWASMEventModelCB(data []byte) ([]byte, error) {
 		return []byte(err.Error()), nil
 	}
 
-	return nil, nil
+	return []byte{}, nil
 }
 
 // messageReceivedCallback sends calls to the channels.MessageReceivedCallback

indexedDb/impl/dm/callbacks.go

@@ -74,7 +74,7 @@ func (m *manager) newWASMEventModelCB(data []byte) ([]byte, error) {
 		return []byte(err.Error()), nil
 	}
 
-	return nil, nil
+	return []byte{}, nil
 }
 
 // messageReceivedCallback sends calls to the MessageReceivedCallback in the

indexedDb/worker/channels/init.go

@@ -121,7 +121,7 @@ func NewWASMEventModel(path, wasmJsPath string, encryption cryptoChannel.Cipher,
 
 	select {
 	case data := <-dataChan:
-		if data != nil {
+		if len(data) > 0 {
 			return nil, errors.New(string(data))
 		}
 	case <-time.After(worker.ResponseTimeout):

indexedDb/worker/dm/init.go

@@ -89,7 +89,7 @@ func NewWASMEventModel(path, wasmJsPath string, encryption cryptoChannel.Cipher,
 
 	select {
 	case data := <-dataChan:
-		if data != nil {
+		if len(data) > 0 {
 			return nil, errors.New(string(data))
 		}
 	case <-time.After(worker.ResponseTimeout):