diff --git a/components/layout/flow/mod.rs b/components/layout/flow/mod.rs
index 21ae2d97085..85fdf96939e 100644
--- a/components/layout/flow/mod.rs
+++ b/components/layout/flow/mod.rs
@@ -1391,14 +1391,16 @@ impl IndependentFormattingContext {
)
};
- let lazy_block_size = LazySize::new(
- &content_box_sizes.block,
- Direction::Block,
- Size::FitContent,
- Au::zero,
- available_block_size,
- is_table,
- );
+ let get_lazy_block_size = || {
+ LazySize::new(
+ &content_box_sizes.block,
+ Direction::Block,
+ Size::FitContent,
+ Au::zero,
+ available_block_size,
+ is_table,
+ )
+ };
// The final inline size can depend on the available space, which depends on where
// we are placing the box, since floats reduce the available space.
@@ -1414,6 +1416,7 @@ impl IndependentFormattingContext {
// compute it with an available inline space of zero. Then, after layout we can
// compute the block size, and finally place among floats.
let inline_size = inline_size_with_no_available_space;
+ let lazy_block_size = get_lazy_block_size();
layout = self.layout(
layout_context,
positioning_context,
@@ -1479,6 +1482,7 @@ impl IndependentFormattingContext {
// Later we'll check to see if the resulting block size is compatible with the
// placement.
let positioning_context_length = positioning_context.len();
+ let lazy_block_size = get_lazy_block_size();
layout = self.layout(
layout_context,
positioning_context,
diff --git a/tests/wpt/meta/MANIFEST.json b/tests/wpt/meta/MANIFEST.json
index 90357bd200f..b871bef05e3 100644
--- a/tests/wpt/meta/MANIFEST.json
+++ b/tests/wpt/meta/MANIFEST.json
@@ -59963,6 +59963,19 @@
{}
]
],
+ "floats-bfc-003.html": [
+ "a40c6ae6c0e9edb2c696fc324abfa0c9eca35a91",
+ [
+ null,
+ [
+ [
+ "/css/reference/ref-filled-green-100px-square.xht",
+ "=="
+ ]
+ ],
+ {}
+ ]
+ ],
"floats-clear-multicol-000.html": [
"3598a2f7aba955b5ba3e6ee1739bfd468d2b28ea",
[
diff --git a/tests/wpt/tests/css/CSS2/floats-clear/floats-bfc-003.html b/tests/wpt/tests/css/CSS2/floats-clear/floats-bfc-003.html
new file mode 100644
index 00000000000..a40c6ae6c0e
--- /dev/null
+++ b/tests/wpt/tests/css/CSS2/floats-clear/floats-bfc-003.html
@@ -0,0 +1,26 @@
+
+CSS Test: Floats with overflow:hidden next to them
+
+
+
+
+
+
+Test passes if there is a filled green square and no red.
+