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Error Synchronous XMLHTTPRequest are deprecated while debugging Lightning App in Chrome and IE

I have created a lightning component in Salesforce and trying to test it or debug it using chrome browser. When i do the preview of lightning app error is shown that Synchronous XMLHTTPRequest are deprecated. Same error is shown in IE also
Please let me know if any library or code snippet that needs to be included before lightning component is loaded.

<aura:component implements="force:lightningQuickAction,force:appHostable" controller="GetRPPPrice">
<aura:handler name="init" value="{!this}" action="{!c.doInit}" />
<div class="row"> <p class="title">Product Category Selection</p>
<ui:inputSelect class="single" aura:id="productname" change="{!c.onProductChange}">
<ui:inputSelectOption text="Golf"/>
<ui:inputSelectOption text="Fitness" value="true"/>
<ui:inputSelectOption text="Running"/>
<ui:inputSelectOption text="RIDER"/>
<ui:inputSelectOption text="VIO"/> <ui:inputSelectOption text="Golf accessories"/>
</ui:inputSelect>
<ui:outputText class="result" aura:id="dynamicresult" value="" /> </div> </aura:component>