For more information, see the Chrome Platform Status entry. This change is happening in the Chromium project, on which Microsoft Edge is based. Two compatibility policies are available to suppress the CORS preflight request: InsecurePrivateNetworkRequestAllowed and InsecurePrivateNetworkRequestAllowedForUrls.īlock external protocols in sandboxed frames by defaultīlocks the use of external protocols (that interact with non-browser applications) from sandboxed iframes unless permission is explicitly granted by the sandbox attribute on the frame. For more information, see the Chrome Platform Status entry and Chrome Developers blog post. Enforcement will begin in v111 at the earliest. The result of this check is not yet enforced. The intranet server should respond to the preflight by providing explicit permission to access the resource. Starting with v104, Microsoft Edge sends a CORS preflight request before a page from the internet is allowed to request resources from a local network (intranet). Send CORS preflight requests for private network access For more information and testing guidance, see Changes to Microsoft Edge browser TLS server certificate verification. If you have uncommon TLS server certificate deployments, you should test in v109 to confirm there's no impact. No site compatibility impacts are anticipated. V109 (unmanaged devices), v111 (managed devices) For more information and workarounds, see Microsoft Edge will disable modifying document.domain. This behavior will be disabled by default such that setting the document.domain property will have no effect. The document.domain property historically could be set to relax the same-origin policy and allow subdomains from a site to interact. Ignore modifications to document.domain by default See Intent to Deprecate: Mutation Events. Removes support for mutation events in Chromium. For more information, see Intent to Remove: Cross origin subframe JS Dialogs. Removes window.alert, window.prompt, and nfirm from cross-origin iframes. Removal of cross-origin subframe JavaScript dialogs For more information, see Intent to Deprecate: Deprecate unload event. The default policy is allow, but the default policy will gradually be migrated to deny, such that unload handlers stop firing on pages, unless a page explicitly opts in to re-enable them. Introduces a new Permission-Policy to allow creating unload event listeners. High-impact changes which the Microsoft Edge team is tracking closely.Changes where the rollout schedule for Microsoft Edge differs from the upstream Chromium project.Differences from the Chromium schedule, and high-impact changes The Microsoft Edge team decides if the change benefits browser users.įor information about upcoming Chromium project web platform changes, see Chrome Platform Status Release timeline.Ĭheck this article often as the Microsoft Edge team updates this article as thinking evolves, timelines solidify, and new changes are announced. However, Microsoft retains full control of the Microsoft Edge browser and may defer or reject changes. In some cases, these changes may affect the functionality of existing webpages.įor functionality and compatibility reasons, Microsoft Edge adopts nearly all of the Chromium project's changes to the web platform. The web platform constantly evolves to improve the user experience, security, and privacy. The web platform is a collection of technologies used for building webpages, including HTML, CSS, JavaScript, and many other open standards. It also highlights any differences and high-impact changes which the Microsoft Edge team is tracking especially closely. This article lists the schedule of changes for Microsoft Edge and the Chromium project.
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