Cross-site Request Leak Report
Edge v42 (default settings)

To evaluate whether your current browser instance's cookie policies can be bypassed with one of the request mechanisms, simply click on the specific instance you want to test. This will open a new tab, where the test is set up and executed: the test will try to initiate a cross-site request to cross-site.com. After a few seconds, you will be redirected back to this page, showing the results of the test.

To analyze the correctness of your browser extension, make sure to mark the checkbox underneath.

Test with cross-site request that should be blocked by easylist.txt:

Request Mechanism

HTML elements

embed-src, object-data

Redirects

meta-refresh, redirect-winloc, status-301, status-302, status-303, status-307, status-308

JavaScript

websocket-wss

Redirects

form-GET

Redirects

form-POST

AppCache

appcache

CSS

after-content, background-image, before-content, border-image-source, cursor, escape-url, font-face, font-face-fallback, import-string, import-url, list-style-image, svg--clip-path, svg--fill, svg--filter, svg--mask, variables

HTML elements

audio-source-src, body-background, iframe-src, iframe-src-data-svg-image-href, image-src, img-src, img-srcset, input-src, link-alternate-stylesheet, link-preload-as-font, link-preload-as-image, link-preload-as-style, link-stylesheet, picture-img-srcset, svg-feimage, svg-fill, svg-image-href, svg-image-xlink-href, svg-inline-css-clip-path, svg-inline-css-fill, svg-inline-css-filter, svg-inline-css-mask, svg-rect-cursor, svg-rect-mask, table-background, td-background, video-poster, video-source-src, video-src

JavaScript

fetch-credentials-include, fetch-GET-credentials-include, fetch-HEAD-credentials-include, fetch-POST-credentials-include, send-beacon, xhr-get-withCredentials, xhr-head-withCredentials, xhr-post-withCredentials

Service worker

fetch-credentials-include, fetch-GET-credentials-include, fetch-HEAD-credentials-include, fetch-POST-credentials-include, refetch-through-innocent-script, send-beacon

JavaScript

fetch, fetch-GET, fetch-HEAD, fetch-POST, xhr-delete, xhr-delete-withCredentials, xhr-get, xhr-head, xhr-post, xhr-put, xhr-put-withCredentials

Service worker

fetch, fetch-GET, fetch-HEAD, fetch-POST

Response headers

csp-report-uri