[Solved-3 Solutions] “Synchronous XMLHttpRequest on the main thread is deprecated…”

Error Description:

In many places when we add a console.log in my main.js file, we receive the following error:
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience.

Solution 1:

The warning message MAY BE due to an XMLHttpRequest request within the main thread with the async flag set to false.

Solution 2:

Use Chrome Browser > Hit F12 to bring DevTools
Open the drawer menu (in Chrome 3 vertical dots in the upper right)
Under Console > check Log XMLHttpRequests option
Reload your page that was giving you the error and observe what happens on each ajax request in the console log.

Solution 3:

To avoid this warning, do not use:

async: false

click below button to copy the code. By - jquery tutorial - team

in any of your $.ajax() calls. This is the only feature of XMLHttpRequest that's deprecated.
The default is

async: true

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[Solved-3 Solutions] “Synchronous XMLHttpRequest on the main thread is deprecated…”

Error Description:

Solution 1:

Solution 2:

Solution 3:

click below button to copy the code. By - jquery tutorial - team

click below button to copy the code. By - jquery tutorial - team

Related Searches to “Synchronous XMLHttpRequest on the main thread is deprecated…”

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