src/deferred/exceptionHook.js


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import jQuery from "../core.js";

import "../deferred.js";

// These usually indicate a programmer mistake during development,
// warn about them ASAP rather than swallowing them by default.
var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;

// If `jQuery.Deferred.getErrorHook` is defined, `asyncError` is an error
// captured before the async barrier to get the original error cause
// which may otherwise be hidden.
jQuery.Deferred.exceptionHook = function( error, asyncError ) {

	if ( error && rerrorNames.test( error.name ) ) {
		window.console.warn(
			"jQuery.Deferred exception",
			error,
			asyncError
		);
	}
};