Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience.
If you are getting above issue, It means in Ajax call ( May be using xmlHttpRequest, jQuery.js OR prototype.js etc), Somewhere you have set following:
Never use "async: false", Because it has been deprecated.
async must be true, whether you are using core ajax, jQuery ajax OR prototype ajax etc.
If you are getting above issue, It means in Ajax call ( May be using xmlHttpRequest, jQuery.js OR prototype.js etc), Somewhere you have set following:
async: false
Never use "async: false", Because it has been deprecated.
async must be true, whether you are using core ajax, jQuery ajax OR prototype ajax etc.
