Add WebView state restoration feature

[dus7]

Asana Task/Github Issue: https://app.asana.com/0/0/1209202305408189/f

Description

Adds a feature allowing to control the ability in iOS app to persist WebView interaction state (back/forward navigation stack, scroll position) to be able to restore it after app was terminated.

Feature change process:

• I have added a schema to validate this feature change
• I have tested this change locally
• This code for the config change is ready to merge
• This feature was covered by a tech design

Additional info:

• I have tested this change locally in all supported browsers
• This change will be visible to users
• This code for the config change is ready
• This change was covered by a ship review

Reference

• Config Reviewer Documentation
• Config Maintainer Documentation
• Feature Implementer Documentation

[github-actions]

Don't forget to add an individual reviewer (in addition to those already added, this should create a task for them in Asana).
- The best reviewer is most likely a feature or platform owner.
- If they've got permission to approve, you're good to merge. See CODEOWNERS
- As a fallback the Global owners are:
- Breakage AOR
- Breakage triagers
- Config AOR
Please mark this as draft unless there's intention to merge this.
Click the "Merge When Ready" if you're happy for this to automatically get merged once reviewed.
- If the option isn't available to you; ensure you've signed into DuckDuckGo oauth.
Also don't forget to add schema changes to validate if you're adding/changing a feature.

• Config Reviewer Documentation
• Config Maintainer Documentation
• Feature Implementer Documentation

[github-actions]

Generated file outputs:

Time updated: Tue, 21 Jan 2025 11:37:04 GMT

legacy

trackers-unprotected-temporary.txt

⚠️ File is identical

v3/android-config.json (12 more)

• v3/android-config.json
• v3/extension-brave-config.json
• v3/extension-bravemv3-config.json
• v3/extension-chrome-config.json
• v3/extension-chromemv3-config.json
• v3/extension-config.json
• v3/extension-edg-config.json
• v3/extension-edge-config.json
• v3/extension-edgmv3-config.json
• v3/extension-firefox-config.json
• v3/extension-safarimv3-config.json
• v3/macos-config.json
• v3/windows-config.json

--- v3/windows-config.json
+++ v3/windows-config.json
@@ -10959,8 +10959,12 @@
                     }
                 ]
             }
         },
+        "webViewStateRestoration": {
+            "state": "disabled",
+            "exceptions": []
+        },
         "webViewBlobDownload": {
             "exceptions": [],
             "state": "disabled"
         },

v3/ios-config.json

--- v3/ios-config.json
+++ v3/ios-config.json
@@ -11296,8 +11296,12 @@
                     }
                 ]
             }
         },
+        "webViewStateRestoration": {
+            "state": "enabled",
+            "exceptions": []
+        },
         "webViewBlobDownload": {
             "exceptions": [],
             "state": "disabled"
         },

latest

v4/android-config.json (12 more)

• v4/android-config.json
• v4/extension-brave-config.json
• v4/extension-bravemv3-config.json
• v4/extension-chrome-config.json
• v4/extension-chromemv3-config.json
• v4/extension-config.json
• v4/extension-edg-config.json
• v4/extension-edge-config.json
• v4/extension-edgmv3-config.json
• v4/extension-firefox-config.json
• v4/extension-safarimv3-config.json
• v4/macos-config.json
• v4/windows-config.json

--- v4/windows-config.json
+++ v4/windows-config.json
@@ -9968,8 +9968,12 @@
                     }
                 ]
             }
         },
+        "webViewStateRestoration": {
+            "state": "disabled",
+            "exceptions": []
+        },
         "webViewBlobDownload": {
             "exceptions": [],
             "state": "disabled"
         },

v4/ios-config.json

--- v4/ios-config.json
+++ v4/ios-config.json
@@ -10264,8 +10264,12 @@
                     }
                 ]
             }
         },
+        "webViewStateRestoration": {
+            "state": "enabled",
+            "exceptions": []
+        },
         "webViewBlobDownload": {
             "exceptions": [],
             "state": "disabled"
         },