From 1f657b1987b7d7c794e177d1fd2e5522a957d12e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Wang?= <fwang@igalia.com>
Date: Fri, 4 Nov 2022 17:01:58 +0100
Subject: [PATCH 1/2] Update compat data for requiredExtensions

- Basic support (i.e. recognize XHTML namespace) was added in Firefox 1.9.1 [1], Safari 8 [2] and Chromium 81 [3].
- MathML support (i.e. recognize MathML namespace) was added in the same browser versions [1] [2] [4], although Chromium's one is still under a flag.

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=449746 (Firefox 1.9.1, MathML & XHTML)
[2] https://bugs.webkit.org/show_bug.cgi?id=88188 (Safari 8, MathML & XHTML)
[3] https://chromiumdash.appspot.com/commit/c78acd517835db96c3b50f11d30eb2a77e9910c1 (Chromium 81, XHTML)
[4] https://chromiumdash.appspot.com/commit/719b33b59410a6a4623769c3a93220db03dfa51b (Chromium 81, MathML)
---
 svg/attributes/conditional_processing.json | 46 ++++++++++++++++++++--
 1 file changed, 43 insertions(+), 3 deletions(-)

diff --git a/svg/attributes/conditional_processing.json b/svg/attributes/conditional_processing.json
index de98744f8f141..a04d0e287d021 100644
--- a/svg/attributes/conditional_processing.json
+++ b/svg/attributes/conditional_processing.json
@@ -7,12 +7,12 @@
             "mdn_url": "https://developer.mozilla.org/docs/Web/SVG/Attribute/requiredExtensions",
             "support": {
               "chrome": {
-                "version_added": null
+                "version_added": "81"
               },
               "chrome_android": "mirror",
               "edge": "mirror",
               "firefox": {
-                "version_added": null
+                "version_added": "2"
               },
               "firefox_android": "mirror",
               "ie": {
@@ -22,7 +22,7 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": null
+                "version_added": "8"
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",
@@ -33,6 +33,46 @@
               "standard_track": true,
               "deprecated": false
             }
+          },
+          "mathml": {
+            "__compat": {
+              "support": {
+                "chrome": {
+                  "version_added": "81",
+                  "impl_url": "https://crrev.com/c/2007454",
+                  "flags": [
+                    {
+                      "type": "preference",
+                      "name": "#enable-experimental-web-platform-features",
+                      "value_to_set": "Enabled"
+                    }
+                  ]
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": "2"
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": null
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": "8"
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": false,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
           }
         },
         "requiredFeatures": {

From fde1a930136995f58b1f8c9372592d0f6fa9e784 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Wang?= <fred.wang@free.fr>
Date: Fri, 4 Nov 2022 20:01:03 +0100
Subject: [PATCH 2/2] Update svg/attributes/conditional_processing.json

Co-authored-by: Florian Scholz <fs@florianscholz.com>
---
 svg/attributes/conditional_processing.json | 1 +
 1 file changed, 1 insertion(+)

diff --git a/svg/attributes/conditional_processing.json b/svg/attributes/conditional_processing.json
index a04d0e287d021..7fb059c55868f 100644
--- a/svg/attributes/conditional_processing.json
+++ b/svg/attributes/conditional_processing.json
@@ -36,6 +36,7 @@
           },
           "mathml": {
             "__compat": {
+              "description": "Recognizes MathML namespace",
               "support": {
                 "chrome": {
                   "version_added": "81",