[Webkit-unassigned] [Bug 258820] Private Browsing Detection from JS in Safari

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Jul 3 12:50:16 PDT 2023


https://bugs.webkit.org/show_bug.cgi?id=258820

--- Comment #1 from Ahmad Saleem <ahmad.saleem792 at gmail.com> ---
(function () {
"use strict";
function isPrivate(flag) {
    document.getElementById("status").textContent = flag ? "Yes" : "No";
}

window.indexedDB.open("test", 1).onupgradeneeded = function(event) {
    const db = event.target.result;
    const objectStore = db.createObjectStore("test", { autoIncrement: true });
    try {
        objectStore.put(new Blob());
        isPrivate(false);
    } catch (error) {
        const message = error.message;
        isPrivate(typeof message === "string" && /BlobURLs are not yet supported/.test(message));
    } finally {
        db.close();
        window.indexedDB.deleteDatabase("test");
    }
};
})();

____________

This is JS used by website leveraging IndexedDB.

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