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Is this value a JS String object or primitive? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

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'use strict';

var strValue = String.prototype.valueOf;
var tryStringObject = function tryStringObject(value) {
	try {
		strValue.call(value);
		return true;
	} catch (e) {
		return false;
	}
};
var toStr = Object.prototype.toString;
var strClass = '[object String]';
var hasToStringTag = require('has-tostringtag/shams')();

module.exports = function isString(value) {
	if (typeof value === 'string') {
		return true;
	}
	if (typeof value !== 'object') {
		return false;
	}
	return hasToStringTag ? tryStringObject(value) : toStr.call(value) === strClass;
};