fix(poloniex): Pro timeframes
diff --git a/ts/src/pro/poloniex.ts b/ts/src/pro/poloniex.ts
index f550eb7bacd1..49f630c8ab28 100644
--- a/ts/src/pro/poloniex.ts
+++ b/ts/src/pro/poloniex.ts
@@ -554,7 +554,8 @@ export default class poloniex extends poloniexRest {
         const marketId = this.safeString (data, 'symbol');
         const symbol = this.safeSymbol (marketId);
         const market = this.safeMarket (symbol);
-        const timeframe = this.findTimeframe (channel);
+        const timeframes = this.safeValue (this.options, 'timeframes', {});
+        const timeframe = this.findTimeframe (channel, timeframes);
         const messageHash = channel + '::' + symbol;
         const parsed = this.parseWsOHLCV (data, market);
         this.ohlcvs[symbol] = this.safeValue (this.ohlcvs, symbol, {});

- findTimeFrames was using Rest timeframes