diff --git a/components/layout/display_list_builder.rs b/components/layout/display_list_builder.rs
index 171e56ab9ea..5e2843b56cb 100644
--- a/components/layout/display_list_builder.rs
+++ b/components/layout/display_list_builder.rs
@@ -798,6 +798,7 @@ fn convert_gradient_stops(gradient_items: &[GradientItem],
position_to_offset(position, total_length)
}
};
+ assert!(offset.is_finite());
stops.push(GradientStop {
offset: offset,
color: stop.color.to_gfx_color()
@@ -3271,6 +3272,9 @@ struct StopRun {
}
fn position_to_offset(position: LengthOrPercentage, total_length: Au) -> f32 {
+ if total_length == Au(0) {
+ return 0.0
+ }
match position {
LengthOrPercentage::Length(l) => l.to_i32_au() as f32 / total_length.0 as f32,
LengthOrPercentage::Percentage(percentage) => percentage.0 as f32,
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index 30613dca959..5d11cbbfbf0 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -112773,6 +112773,18 @@
{}
]
],
+ "css/css-images/gradient-crash.html": [
+ [
+ "/css/css-images/gradient-crash.html",
+ [
+ [
+ "/css/css-images/gradient-crash-ref.html",
+ "=="
+ ]
+ ],
+ {}
+ ]
+ ],
"css/css-images/gradient-move-stops.html": [
[
"/css/css-images/gradient-move-stops.html",
@@ -239589,6 +239601,11 @@
{}
]
],
+ "css/css-images/gradient-crash-ref.html": [
+ [
+ {}
+ ]
+ ],
"css/css-images/gradient-move-stops-ref.html": [
[
{}
@@ -481714,6 +481731,14 @@
"5e74191a82ee45a5441d595c79b2a41b34748038",
"reftest"
],
+ "css/css-images/gradient-crash-ref.html": [
+ "5ad029bf4f73d96fed5eb085b40ea3daeeb7aaf6",
+ "support"
+ ],
+ "css/css-images/gradient-crash.html": [
+ "6dbca7ec2fe3d0596d3ccc50f7a417aa625ad28e",
+ "reftest"
+ ],
"css/css-images/gradient-move-stops-ref.html": [
"bb2fca5aaeb7fe1abf30620695ad3fd832c0d089",
"support"
diff --git a/tests/wpt/web-platform-tests/css/css-images/gradient-crash-ref.html b/tests/wpt/web-platform-tests/css/css-images/gradient-crash-ref.html
new file mode 100644
index 00000000000..82055fc37ee
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-images/gradient-crash-ref.html
@@ -0,0 +1 @@
+
diff --git a/tests/wpt/web-platform-tests/css/css-images/gradient-crash.html b/tests/wpt/web-platform-tests/css/css-images/gradient-crash.html
new file mode 100644
index 00000000000..dbdf77bbb1d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-images/gradient-crash.html
@@ -0,0 +1,12 @@
+
+
+Does this gradient crash the browser?
+
+
+
+
+