What is the vulnerability of XHR communications?(a) There is no vulnerability(b) Skewing the results(c) Registration and Skewing the results(d) Registering the test resultsI had been asked this question in unit test.My question is taken from JavaScript with WebPageTest topic in chapter Performance Measures in JavaScript of JavaScript

What is the vulnerability of XHR communications?(a) There is no vulner

1.	What is the vulnerability of XHR communications?(a) There is no vulnerability(b) Skewing the results(c) Registration and Skewing the results(d) Registering the test resultsI had been asked this question in unit test.My question is taken from JavaScript with WebPageTest topic in chapter Performance Measures in JavaScript of JavaScript
Answer» Correct CHOICE is (c) Registration and Skewing the results Easiest explanation: XMLHTTPREQUEST (XHR) is an API in the form of an object whose methods transfer data between a web browser and a web server. XHR communications that MAY happen after page LOAD could register as new activity and skew the test results.

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