How can I upload files asynchronously with jQuery?

How can I upload files asynchronously with jQuery?

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Send POST data using XMLHttpRequest

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How to read a local text file?

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Origin is not allowed by Access-Control-Allow-Origin

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Proper way to catch exception from JSON.parse

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Why does my http://localhost CORS origin not work?

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How to get the response of XMLHttpRequest?

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Pure JavaScript Send POST Data Without a Form

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How do I promisify native XHR?

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Fetch API vs XMLHttpRequest

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Cross-Origin Request Headers(CORS) with PHP headers

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Why am I seeing an "origin is not allowed by Access-Control-Allow-Origin" error here? [duplicate]

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How to enable CORS in AngularJs

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How does JavaScript handle AJAX responses in the background?

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No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin '...' is therefore not allowed access

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