diff --git a/layout/style/res/ua.css b/layout/style/res/ua.css
index 27e233a08515..d70112f34227 100644
--- a/layout/style/res/ua.css
+++ b/layout/style/res/ua.css
@@ -136,6 +136,7 @@
text-transform: none;
unicode-bidi: isolate;
font-variant-numeric: tabular-nums;
+ white-space: pre;
}
/* SVG documents don't always load this file but they do have links.
diff --git a/layout/style/test/property_database.js b/layout/style/test/property_database.js
index c723eed69449..4dd601bebcbf 100644
--- a/layout/style/test/property_database.js
+++ b/layout/style/test/property_database.js
@@ -8526,6 +8526,7 @@ var gCSSProperties = {
type: CSS_TYPE_LONGHAND,
applies_to_placeholder: true,
applies_to_cue: true,
+ applies_to_marker: true,
initial_values: ["normal"],
other_values: [
"pre",
diff --git a/servo/components/style/properties/data.py b/servo/components/style/properties/data.py
index dd07ddece321..8a523ccb66f3 100644
--- a/servo/components/style/properties/data.py
+++ b/servo/components/style/properties/data.py
@@ -879,6 +879,7 @@ class PropertyRestrictions:
def marker(data):
return set(
[
+ "white-space",
"color",
"text-combine-upright",
"text-transform",
diff --git a/testing/web-platform/meta/css/css-pseudo/parsing/marker-supported-properties-in-animation.html.ini b/testing/web-platform/meta/css/css-pseudo/parsing/marker-supported-properties-in-animation.html.ini
index a3eb573933f2..2cbb8f57e0e9 100644
--- a/testing/web-platform/meta/css/css-pseudo/parsing/marker-supported-properties-in-animation.html.ini
+++ b/testing/web-platform/meta/css/css-pseudo/parsing/marker-supported-properties-in-animation.html.ini
@@ -1,7 +1,4 @@
[marker-supported-properties-in-animation.html]
- [Transition of white-space in ::marker]
- expected: FAIL
-
[Transition of font in ::marker]
expected: FAIL
@@ -14,9 +11,6 @@
[Transition of list-style in ::marker]
expected: FAIL
- [Animation of white-space in ::marker]
- expected: FAIL
-
[Transition of tab-size in ::marker]
expected: FAIL
diff --git a/testing/web-platform/meta/css/css-pseudo/parsing/marker-supported-properties.html.ini b/testing/web-platform/meta/css/css-pseudo/parsing/marker-supported-properties.html.ini
index ac476ed2454b..bff03991842f 100644
--- a/testing/web-platform/meta/css/css-pseudo/parsing/marker-supported-properties.html.ini
+++ b/testing/web-platform/meta/css/css-pseudo/parsing/marker-supported-properties.html.ini
@@ -5,9 +5,6 @@
[Property font value 'italic small-caps 900 expanded 25px / 50px Ahem' in ::marker]
expected: FAIL
- [Property white-space value 'nowrap' in ::marker]
- expected: FAIL
-
[Property animation value '1s linear 2s infinite alternate forwards paused anim' in ::marker]
expected: FAIL
diff --git a/testing/web-platform/tests/css/css-lists/inline-list-marker-ref.html b/testing/web-platform/tests/css/css-lists/inline-list-marker-ref.html
index e5a3c2e490ab..f1dbbdea3db1 100644
--- a/testing/web-platform/tests/css/css-lists/inline-list-marker-ref.html
+++ b/testing/web-platform/tests/css/css-lists/inline-list-marker-ref.html
@@ -7,6 +7,7 @@
CSS Reference: inline list-item with ::marker
+