[Problem/Bug]: Canary WebView2 making unexpected network requests to edge-mobile-static.azureedge.net

[RendijsSmukulis]

What happened?

Canary WebVIew2 version 121.0.2227.0 has started making unexpected network requests to https://edge-mobile-static.azureedge.net/eccp/get?settenant=edge-config&setplatform=win&setmkt=en-US&setchannel=stable on startup.

We'd like to understand if this new request is required for the functionality of WebView2 (or is a carry-over from Edge), and whether it would be possible to disable this request?

Runtime Channel

Prerelease (Edge Canary/Dev/Beta)

Runtime Version

121.0.2227.0

SDK Version

No response

Framework

WPF

Operating System

Windows 11

OS Version

No response

Repro steps

• Clear the WebView2 profile folder for the app being tested
• Start fiddler or a similar MITM proxy
• Run an app that uses WebView2 (e.g. Microsoft's sample app)
• Find a GET https://edge-mobile-static.azureedge.net/eccp/get?settenant=edge-config&setplatform=win&setmkt=en-US&setchannel=stable HTTP/1.1 request in fiddler

Repros in Edge Browser

Not Applicable

Regression

Regression in newer Runtime

Last working version (if regression)

121.0.2225.0

AB#47776122

[haroldrandom]

Hi, it's a feature but already disabled on WebView since Canary 121.0.2243.0. We involved it in unintentionally.

Could you give a try on the latest Canary and repro your steps?

[srwei]

Hi all. Yes, this feature was disabled from WebView2 in Edge-Canary 121.0.2241.0. The latest should not have this request.