I installed the cq-dialog-conversion-content-2.0.0 to convert.
The below warnings are observed on developer console.
granite.js:227 [Deprecation] Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
XMLHttpRequest.open @ granite.js:227
send @ jquery.js:10208
ajax @ jquery.js:9738
Granite.I18n.self.getDictionary @ utils.js:940
Granite.I18n.self.get @ utils.js:964
(anonymous) @ quickactions.js:161
(anonymous) @ quickactions.js:577
foundation.js:1747 @deprecated $.validator ; use foundation-validation