diff --git a/components/layout/flexbox/layout.rs b/components/layout/flexbox/layout.rs
index e69b792e272..3ddbb71ba89 100644
--- a/components/layout/flexbox/layout.rs
+++ b/components/layout/flexbox/layout.rs
@@ -29,7 +29,9 @@ use super::{FlexContainer, FlexContainerConfig, FlexItemBox, FlexLevelBox};
 use crate::cell::ArcRefCell;
 use crate::context::LayoutContext;
 use crate::formatting_contexts::{Baselines, IndependentFormattingContextContents};
-use crate::fragment_tree::{BoxFragment, CollapsedBlockMargins, Fragment, FragmentFlags};
+use crate::fragment_tree::{
+    BoxFragment, CollapsedBlockMargins, Fragment, FragmentFlags, SpecificLayoutInfo,
+};
 use crate::geom::{AuOrAuto, LogicalRect, LogicalSides, LogicalVec2, Size, Sizes};
 use crate::layout_box_base::CacheableLayoutResult;
 use crate::positioned::{
@@ -142,6 +144,9 @@ struct FlexItemLayoutResult {
 
     // Whether or not this layout had a child that dependeded on block constraints.
     has_child_which_depends_on_block_constraints: bool,
+
+    // The specific layout info that this flex item had.
+    specific_layout_info: Option<SpecificLayoutInfo>,
 }
 
 impl FlexItemLayoutResult {
@@ -295,7 +300,8 @@ impl FlexLineItem<'_> {
                 .sides_to_flow_relative(item_margin)
                 .to_physical(container_writing_mode),
             None, /* clearance */
-        );
+        )
+        .with_specific_layout_info(self.layout_result.specific_layout_info);
 
         // If this flex item establishes a containing block for absolutely-positioned
         // descendants, then lay out any relevant absolutely-positioned children. This
@@ -1910,6 +1916,7 @@ impl FlexItem<'_> {
                     // size can differ from the hypothetical cross size, we should defer
                     // synthesizing until needed.
                     baseline_relative_to_margin_box: None,
+                    specific_layout_info: None,
                 })
             },
             IndependentFormattingContextContents::NonReplaced(non_replaced) => {
@@ -1944,6 +1951,7 @@ impl FlexItem<'_> {
                     content_block_size,
                     baselines: content_box_baselines,
                     depends_on_block_constraints,
+                    specific_layout_info,
                     ..
                 } = layout;
 
@@ -2012,6 +2020,7 @@ impl FlexItem<'_> {
                     containing_block_block_size: item_as_containing_block.size.block,
                     depends_on_block_constraints,
                     has_child_which_depends_on_block_constraints,
+                    specific_layout_info,
                 })
             },
         }
diff --git a/tests/wpt/meta/MANIFEST.json b/tests/wpt/meta/MANIFEST.json
index 73aa09203dc..72aed525d96 100644
--- a/tests/wpt/meta/MANIFEST.json
+++ b/tests/wpt/meta/MANIFEST.json
@@ -618436,7 +618436,7 @@
       ]
      ],
      "table-client-props.html": [
-      "4af06d6bf71f0df75d3710ec0906445e943d340d",
+      "2895bebebbf1868ef60f947d230ecca96dd6e85a",
       [
        null,
        {}
diff --git a/tests/wpt/tests/css/cssom-view/table-client-props.html b/tests/wpt/tests/css/cssom-view/table-client-props.html
index 4af06d6bf71..2895bebebbf 100644
--- a/tests/wpt/tests/css/cssom-view/table-client-props.html
+++ b/tests/wpt/tests/css/cssom-view/table-client-props.html
@@ -43,6 +43,19 @@
            <tr><td>`,
         26, 34,
         "Table with collapsed border" ],
+      [ `<div style="display: flex">
+           <table style="width: 20px; height: 30px;
+                         border-width: 1px 2px 3px 4px; border-style: solid;
+                         border-collapse: separate; box-sizing: content-box">`,
+        26, 34,
+        "Flex-level table with separated border" ],
+      [ `<div style="display: flex">
+           <table style="width: 20px; height: 30px;
+                         border-width: 2px 4px 6px 8px; border-style: solid;
+                         border-collapse: collapse; box-sizing: content-box">
+             <tr><td>`,
+        26, 34,
+        "Flex-level table with collapsed border" ],
       [ `<table>
            <caption style="width: 40px; height: 50px; padding: 1px 2px 3px 4px">`,
         46, 54,