vjs-logout-bookmarklet.md

VJS Logout Bookmarklet

The VJS legacy system (algus$.startup) uses HTTP Basic Auth via the nvagun DAD — which has no sign-out button. Clearing cookies doesn't help because Basic Auth credentials are cached in browser memory, not cookies.

This bookmarklet forces the browser to forget the cached credentials.

Install

Copy this code and create a bookmarklet in your browser's bookmarks bar:

javascript:void((function(){var x=new XMLHttpRequest();x.open('GET',location.href,true,'logout','logout');x.onloadend=function(){location.reload()};x.send()})())

Step-by-step

1. Right-click your browser's bookmarks bar → Add page (or Add bookmark)
2. Name: VJS Logout
3. URL: paste the javascript:void(...) code above
4. Save

Use

1. Navigate to any VJS page (e.g. ias.evr.ee/vjs/nvagun/algus$.startup)
2. Click the VJS Logout bookmark
3. The page reloads and prompts for login

How it works

The bookmarklet sends an XMLHttpRequest with deliberately invalid credentials (logout:logout). The server returns HTTP 401, which tells the browser to discard its cached Basic Auth credentials. The page then reloads, triggering a fresh login prompt.

Works in Chrome, Edge, and Firefox.

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EVR / apex-research — AR:Schliemann, 2026-06-18