Update "Network features reference" including "Filter requests"

microsoft-edge/devtools-guide-chromium/javascript/overrides.md

@@ -10,6 +10,7 @@ ms.date: 09/25/2023
 ---
 # Override webpage resources with local copies (Overrides tab)
 <!-- equiv https://developer.chrome.com/docs/devtools/overrides -->
+<!-- todo: add upstream section "Override HTTP response headers"  https://developer.chrome.com/docs/devtools/overrides#override-headers -->
 
 Sometimes you need to try out some possible fixes for a webpage, but you don't have access to the source files, or changing the page requires a slow and complex build process.  You can debug and fix all kind of problems in DevTools.  But the changes don't persist; after you refresh the local file, all your work is gone.  The Overrides feature in the [Sources](../sources/index.md) tool helps you solve this problem.
 

microsoft-edge/devtools-guide-chromium/settings/throttling.md

@@ -0,0 +1,91 @@
+---
+title: Throttling
+description: The Throttling page of DevTools Settings, to control and customize network and CPU speed settings.
+author: MSEdgeTeam
+ms.author: msedgedevrel
+ms.topic: conceptual
+ms.service: microsoft-edge
+ms.subservice: devtools
+ms.date: 05/05/2025
+---
+<!-- Copyright Sofia Emelianova
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       https://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.  -->
+# Throttling
+<!-- https://developer.chrome.com/docs/devtools/settings/throttling -->
+
+In **Customize and control DevTools**,<!-- todo: (![Gear icon]()) --> in the **Throttling** page, you can:
+
+* Calibrate CPU throttling presets to approximate the typical performance of low- and mid-tier mobile devices.
+
+* Set up custom throttling profiles.  You can use these profiles to test custom connection speeds in the **Network** tool.<!-- todo: https://developer.chrome.com/docs/devtools/network/reference#throttling-profile -->
+
+<!-- ![The Throttling tab](todo: png) -->
+
+
+<!-- ====================================================================== -->
+## Calibrate CPU throttling presets
+
+To calibrate CPU throttling presets:
+
+1. In DevTools, click **Customize and control DevTools**,<!-- todo: (![Gear icon]()) -->.
+
+1. In the **Throttling** page, in the **CPU throttling presets** section, click the **Calibrate** button.
+
+1. Wait about 5 seconds for DevTools to navigate away from your current page and reload it.
+
+The **Throttling** tab shows the CPU throttling rates that you can apply to your device to get an idea of how your page performs on low- and mid-tier mobile devices.
+
+<!-- ![Calibrated rates next for low- and mid-tier mobile devices](todo: png) -->
+
+With presets calibrated, you can find them in **Performance** > **Environment settings** > **CPU** and in **Performance** > **Capture settings** drop-down menus.
+
+<!-- ![Calibrated rates next in drop-down menus in the Performance panel](todo: png) -->
+
+
+<!-- ====================================================================== -->
+## Set up custom network throttling profile
+
+To add a custom network throttling profile:
+
+1. In DevTools, click the **Customize and control DevTools**<!-- todo: (![Gear icon]()) --> button.<!-- todo: https://developer.chrome.com/docs/devtools/settings#open -->
+
+1. In the **Throttling** page, in the **Network throttling profiles** section, click the **Add profile** button.
+
+   <!-- ![Creating a new profile in the Throttling tab](todo: png) -->
+
+1. Specify the following optional parameter values for the new entry:
+
+   * **Profile Name**.
+   * **Download** and **Upload** speeds in Kbps.
+   * **Latency** in milliseconds.
+
+   Packet-related parameters:
+   * **Packet loss** in percent.
+   * **Packet queue length** as a number.
+   * **Packet reordering** flag, on or off.
+
+   With packet-related parameters, you can throttle [WebRTC](https://webrtc.org) applications without using third-party software.  You can try these parameters in this [demo page](https://webrtc.github.io/samples/src/content/peerconnection/pc1/).
+
+1. Click **Add** to save the new profile.  You can now select the custom profile from the **Throttling** dropdown menu in the **Network** tool.
+
+To edit or remove an existing profile, click the **Edit** (pencil) or **Delete** (wastebasket) buttons that appear on hover.
+
+
+<!-- ====================================================================== -->
+> [!NOTE]
+> Portions of this page are modifications based on work created and [shared by Google](https://developers.google.com/terms/site-policies) and used according to terms described in the [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0).
+> The original page is found [here](https://developer.chrome.com/docs/devtools/settings/throttling) and is authored by Sofia Emelianova.
+
+[![Creative Commons License](../../media/cc-logo/88x31.png)](https://creativecommons.org/licenses/by/4.0)
+This work is licensed under a [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0).

microsoft-edge/toc.yml

@@ -821,6 +821,10 @@
             - name: Add custom UI to DevTools using extensions
               href: ./devtools-guide-chromium/customize/extensions.md
               displayName: Extensions
+
+            - name: Throttling
+              href: ./devtools-guide-chromium/settings/throttling.md
+              displayName: Settings
 # Remote debugging ------------------------------------------------------------
         - name: Remote debugging
           items: