Merge pull request #18945 from twbs/edge-bug-2263132

Add Wall of Browser Bugs entry for #18228

docs/_data/browser-bugs.yml

@@ -48,6 +48,16 @@
   origin: >
     Bootstrap#18543
 
+-
+  browser: >
+    Internet Explorer 11 & Microsoft Edge
+  summary: >
+    Background color from lower layer bleeds through transparent border in some cases
+  upstream_bug: >
+    IE#2263132
+  origin: >
+    Bootstrap#18228
+
 -
   browser: >
     Firefox