Is it possible to update the trading platforms in the background while trading?

<p id="isPasted">Re-quoting is the most famous trick made by brokers. When the price is going up strongly, and you choose the right direction to enter (you click on the buy button), the broker delays for few seconds, and then instead of taking the position for you, gives a new price which is higher than the price you want to enter (because the price is going up strongly).</p><p>They do it when you choose the right direction. When the price is going up strongly and you buy, then you will make a profit, and this is what a market maker broker doesn’t want. So it doesn’t let you enter with the buy price that was being offered when you clicked on the buy button, waits for few seconds for the price to go higher, and then offers you a new price, which is called re-quoting. Then you will have to click on the buy button again to enter. It is possible that they re-quote again, and repeat this process a few times, to either stop you from entering the market or make you enter with a much higher price. They just want to sabotage your trading.</p><p>Similarly, when the price is going down strongly, and you choose to go short, they don’t let you enter and wait for the price to go lower, and then they re-quote. They cause you to enter at a lower price to prevent you from making a good profit from your short position.</p><p>Real ECN/STP brokers don’t re-quote, because it doesn’t make sense for them to do it. It will have no advantage for them. However, if a broker claims that it is a real ECN/STP broker, and it re-quotes at the same time, then it is not a real ECN/STP. It is a market maker broker.</p>