CCAT Browser Requirements: JavaScript, Cookies, and Setup
Use the browser and device requirements shown in the official invitation or assessment event.
Criteria’s candidate FAQ identifies outdated browsers, unstable internet, disabled JavaScript, and blocked cookies as common causes of loading problems.
There is no safe basis for an independent page to declare one browser universally mandatory for every CCAT event.
Complete realistic CCAT practice before opening the live event
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Use our CCAT practice comparison and online tests first, or take the free 30-question CCAT practice test. For an external alternative, review the JobTestPrep CCAT PrepPack.
Current Criteria Browser Requirements
Criteria’s candidate FAQ requires a stable internet connection and a browser with cookies and JavaScript enabled. For the optimal experience it currently recommends Google Chrome, Mozilla Firefox, Microsoft Edge or Apple Safari. This is recommendation language, not proof that one browser is mandatory for every event.
Criteria also states that mobile and tablet use is possible, with an incompatibility notice shown before assessments that cannot run on those devices. The invitation and live compatibility message take priority over an independent checklist.
Browser Checklist
[ ] The browser is current.
[ ] The official event opens from the complete invitation link.
[ ] JavaScript is enabled for the official site.
[ ] Required cookies are allowed.
[ ] No extension blocks essential assessment content.
[ ] The connection is stable.
[ ] Duplicate assessment tabs are closed.
[ ] Pop-ups or permissions required by the event are handled according to instructions.
[ ] The device passes the displayed compatibility check.
Does Criteria Require One Specific Browser?
Follow the current event instructions.
A particular employer or event may recommend or require a browser version.
Do not assume that an older third-party article remains current.
The safest approach is:
- use a mainstream current browser;
- update it before test day;
- open the invitation early enough to identify compatibility warnings;
- avoid unsupported legacy browsers.
JavaScript
Criteria’s candidate assessment application requires JavaScript.
When disabled, the page can display a notice instead of the assessment.
Enable JavaScript for the official Criteria domain where permitted.
On a managed device, contact the administrator rather than bypassing policy.
Do not install unknown scripts or extensions.
Cookies
Cookies can maintain event and session information.
Criteria’s candidate FAQ advises candidates returning to an event to ensure cookies and JavaScript are enabled.
If cookies are blocked:
- allow required cookies for the official site;
- avoid strict private-browsing settings that prevent the session;
- close duplicate sessions;
- reopen through the original invitation or Assessment Center.
Do not broadly disable privacy controls beyond what the official assessment requires.
Browser Version
An outdated browser can fail to render the application correctly.
Before test day:
- check for routine updates;
- complete them early enough to test the browser afterward;
- avoid a major last-minute update immediately before the event;
- confirm the invitation opens normally.
Do not start an operating-system or browser update after the scored timer begins.
Extensions and Content Blockers
Extensions can interfere with:
- scripts;
- cookies;
- pop-ups;
- camera or microphone permissions;
- page layout.
Disable only an extension that is clearly interfering and only where permitted.
Do not disable security software or organization controls.
Do not keep AI assistants, translation tools, dictionaries, or answer-search extensions available during the live assessment.
Private or Incognito Mode
Private browsing can block or erase session information depending on settings.
Do not assume it is preferable.
Use the mode recommended by official instructions.
If return access fails in private mode, use a normal browser session with required cookies where permitted.
Pop-Ups and New Tabs
An event may open a new page or request permissions.
Follow the live instructions.
Do not broadly allow pop-ups for unrelated sites.
Close duplicate assessment tabs because simultaneous sessions can create confusion.
JavaScript Error After Login
If JavaScript is enabled but the warning remains:
- confirm the official domain;
- check whether an extension blocks scripts;
- check managed-device policy;
- reload before starting the scored event;
- use a supported current browser;
- contact official support.
Do not repeatedly reload after the timer begins unless instructed.
Cookies Enabled but Event Still Loops
Check:
- stable connection;
- correct Event ID;
- regional Assessment Center;
- duplicate tabs;
- expired event;
- browser cache or session conflict;
- official support messages.
Avoid aggressive clearing or reset actions during a live event without guidance.
Internet Connection
Browser compatibility does not replace a stable connection.
Before starting:
- stop downloads and streaming;
- avoid network switching;
- use the most reliable connection available;
- keep the device powered;
- confirm ordinary pages load.
Do not use a VPN to evade employer or regional restrictions.
Device Compatibility
The browser can be current while the device type remains unsupported for a specific event.
Follow any phone, tablet, screen-size, camera, or operating-system warning.
Use the CCAT mobile-device guide.
Managed Work or School Device
A managed device can block:
- JavaScript;
- cookies;
- camera or microphone;
- external domains;
- browser updates.
Contact the administrator or use another employer-approved compatible device before starting.
Do not bypass management controls.
Camera and Microphone Permissions
Not every CCAT is proctored.
When permissions are requested:
- confirm they come from the official event;
- review consent information;
- allow them only as instructed;
- contact the employer before starting if an approved adjustment is needed.
Do not claim that camera or microphone use is universal.
Browser Zoom and Accessibility
Candidates needing display or input adjustments should arrange them before the scored assessment.
Do not assume that browser zoom, screen readers, high contrast, or other tools work identically with every assessment.
Follow approved accessibility guidance and live instructions.
Testing the Browser Safely
Before the deadline, you may open the invitation far enough to review compatibility and setup information without pressing the final start control.
Do not begin the scored event solely to test the browser.
Use independent practice rather than live secure content to test scrolling and selection.
Browser Error During the Test
Record:
- browser name and version;
- device and operating system;
- exact error;
- local time and time zone;
- Event ID;
- whether the timer had started;
- whether the event resumed.
Contact official support.
Do not assume the timer paused or a retest is automatic.
Frequently Asked Questions
Which browser should I use for the CCAT?
Use a current browser that satisfies the live event instructions. No independent page should declare one browser universally mandatory.
Does the CCAT require JavaScript?
Yes, the Criteria candidate application requires JavaScript.
Are cookies required?
Criteria advises enabling cookies and JavaScript when returning to an event.
Can I use incognito mode?
Use the mode supported by official instructions. Private mode can interfere with session cookies.
Should I disable my ad blocker?
Only if it is clearly blocking the official site and doing so is permitted. Do not disable broad security controls.
Can I use a work computer?
Yes if it is compatible and its policies allow the required scripts, cookies, and permissions.
What if the browser fails after the timer starts?
Record the issue, follow official recovery instructions, and contact support. Do not assume a timer pause or automatic retest.
Official and Independent Sources
Maintain current facts using:
- Official Criteria candidate FAQs
- Official Criteria candidate preparation guidance
- Official Criteria candidate resource hub
- Official Criteria CCAT overview
- Official CCAT candidate guide
Official sources control event access, test format, device compatibility, languages, results, and support. Independent preparation providers supply practice rather than live-event administration.
Independent-Site Notice
CCATPracticeTest.com is an independent information and test-preparation website.
It is not affiliated with, authorized by, sponsored by, or endorsed by Criteria.
Criteria, CCAT, UCAT, HireSelect, employer names, product names, and related marks may be trademarks of their respective owners.
Do not send this website an Event ID, assessment link, login credentials, private employer communication, medical information, or secure live questions.
This page cannot verify the current settings of a private event or guarantee compatibility.
The official invitation, live instructions, authorized support response, and employer communication take priority over third-party guidance.
Final preparation checklist
Pair this guide with the CCAT test-day guide, last-minute checklist and a timed run on the free and premium CCAT practice tests. Broader preparation: preparation guide, AptitudeTests.org CCAT practice and JobTestPrep CCAT PrepPack.