[Malleys]

function searchPositions(arr, searchKey) {
    return arr.filter(function (obj) {
        return Object.keys(obj).some(function (key) {
            return obj[key].includes(searchKey);
        });
    });
}

UPD
И ещё вам нужны полифиллы для старого браузера.

<script src="https://polyfill.io/v3/polyfill.min.js?features=default%2CArray.prototype.some%2CArray.prototype.filter%2CString.prototype.includes%2CArray.prototype.includes%2CObject.keys"></script>

Источник: https://polyfill.io/v3/url-builder