Browser, cookies, and cache issues

If CVViZ is acting strangely — pages don't load, you keep getting logged out, parts of the UI are blank, things don't update after a save — the cause is almost always something on your browser side: cached files, cookies, an extension, or browser version. This article walks through how to reset cleanly.

Supported browsers

CVViZ is built and tested against the latest stable versions of:

• Google Chrome

• Microsoft Edge

• Mozilla Firefox

• Safari (recent versions)

Older browsers (Internet Explorer, very old Safari) are not supported. If you're on something exotic, switch first and re-test before troubleshooting.

Step 1 — Hard refresh

The fastest first try is a hard refresh — it pulls a fresh copy of the page bypassing the cache:

• Windows / Linux: Ctrl + Shift + R (or Ctrl + F5)

• macOS: Cmd + Shift + R

If the page renders correctly after a hard refresh, you were running stale JavaScript / CSS — usually because we shipped an update while your tab stayed open for hours.

Step 2 — Try an incognito / private window

Incognito disables most extensions and uses a clean cookie store. If CVViZ works there, the problem is your normal profile (extension or cached cookie).

Step 3 — Clear cookies and site data for app.cvviz.com

Don't wipe everything — just the CVViZ origin.

Chrome / Edge

1. Open chrome://settings/cookies (or edge://settings/cookies).

2. Click See all site data and permissions.

3. Search for cvviz.com.

4. Click the trash icon next to app.cvviz.com (and any related entries).

Firefox

1. Open about:preferences#privacy → Manage Data… under Cookies and Site Data.

2. Search for cvviz.com, select it, click Remove Selected → Save Changes.

Safari

1. Safari → Preferences → Privacy → Manage Website Data.

2. Search cvviz, select, Remove.

After clearing, sign in again. If login no longer loops back to itself, the bad cookie was the cause.

Step 4 — Disable extensions one at a time

The most common UI-breaking extensions:

• Ad blockers / privacy extensions (uBlock Origin, AdBlock, Ghostery, Privacy Badger) — sometimes block analytics endpoints CVViZ needs.

• Anti-tracking extensions — block third-party cookies CVViZ uses for OAuth callbacks.

• Password managers / form fillers — occasionally inject scripts that break our forms.

• Translator extensions — DOM rewriting can confuse React.

• VPN extensions — can rewrite responses, especially on free tiers.

1. Disable extensions, refresh, and re-test.

2. Re-enable one at a time to identify the culprit.

3. Whitelist app.cvviz.com in the offending extension instead of disabling it permanently.

Step 5 — Allow cookies and pop-ups for CVViZ

Some flows need both:

• Cookies — required for staying logged in. Set "block third-party cookies" off, or whitelist app.cvviz.com.

• Pop-ups — needed for OAuth flows (Gmail / Outlook / SSO). If pop-ups are blocked, the connect flow fails silently. Allow pop-ups for app.cvviz.com.

Step 6 — Update or switch browser

If you're on a browser that hasn't updated in a while, the underlying engine may be missing features CVViZ depends on. Update to the latest stable, or try one of the other supported browsers.

Step 7 — Network and device-level checks

• If your company runs a strict firewall or proxy, certain CVViZ endpoints might be blocked. Try the same account from a different network (e.g. mobile hotspot) — if it works there, IT needs to allow *.cvviz.com through the proxy.

• Use a different device to rule out OS-level issues.

• Restart the browser fully (close all windows, reopen).

Specific symptoms

Need help?

Open the help widget at the bottom-right of any CVViZ page. For what to include in a bug report or message, see Getting help and reporting issues.

When you reach out about this, please include:

• Browser name + exact version (Help → About).

• OS and version.

• A screenshot of any console errors.

• Whether the issue reproduces in incognito with all extensions disabled.

• A screen recording if it's an interaction issue.