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Cookie Controls, Revisited

Update: The October 2018 Cumulative Security Update (KB4462919) brings the RS5 Cookie Control changes described below to Windows 10 RS2, RS3, and RS4. Note: Most of the content about “Edge” in this post describes Edge Legacy– modern Edge is based on Chromium and behaves mostly like Chrome. Cookies are one of the most crucial features inContinue reading “Cookie Controls, Revisited”

Cookies and Concurrency, Redux

In yesterday’s episode, I shared the root cause of a bug that can cause document.cookie to incorrectly return an empty string if the cookie is over 1kb and the cookie grows in the middle of a DOM document.cookie getter operation. Unfortunately, that simple bug wasn’t the root cause of the compatibility problem that I wasContinue reading “Cookies and Concurrency, Redux”

Edge Interop Issues

As we finish up the next release of Windows 10 (Fall 2018), my team is hard at work triaging incoming bugs. Many such bugs take the form “Edge does the wrong thing for this page. ${Other_Browser} works okay.” This post is designed to be an (ever-growing) index of some of the behavioral deltas that areContinue reading “Edge Interop Issues”

Script-Generated Download Files

As we finish up the next release of Windows 10, my team is hard at work triaging incoming bugs. Here’s a pattern that has come up a few times this month: Bug: I click download in Edge Legacy: …but I end up on an error page: Womp womp. If you watch the network traffic, you’llContinue reading “Script-Generated Download Files”

Developer Advocacy

The Microsoft Edge (nee Internet Explorer) team held one of their “#AskMSEdge chats” on Twitter yesterday. After watching the stream, @MarkXA neatly summarized the chat: The folks over on WindowsCentral built out a larger summary of the tidbits of news that did get answered on the chat, some of which were just pointers to theirContinue reading “Developer Advocacy”

Microsoft Edge Bugs and Omissions

I tweet about the new Microsoft Edge browser quite a lot. I wanted to have a blog post to collect some of the feedback I’ve provided so I have it in one place and can update as needed. Note: This post mostly focuses on the bad parts of Edge; there are plenty of good parts,Continue reading “Microsoft Edge Bugs and Omissions”