1 files changed, 21 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/CSS2/syntax/uri-010.xht b/testing/web-platform/tests/css/CSS2/syntax/uri-010.xht
new file mode 100644
index 0000000000..d88d5d3449
--- /dev/null
+++ b/testing/web-platform/tests/css/CSS2/syntax/uri-010.xht
@@ -0,0 +1,21 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>CSS Test: Invalid character (_) before URL functions</title>
+        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
+        <link rel="help" href="http://www.w3.org/TR/CSS21/syndata.html#uri" />
+        <link rel="match" href="../reference/no-red-filler-text-ref.xht"/>
+        <meta name="flags" content="image invalid" />
+        <meta name="assert" content="An underscore character preceding URL string invalidates the entire url assignment." />
+        <style type="text/css">
+            div
+            {
+                background: url(_"support/red_box.png");
+            }
+        </style>
+    </head>
+    <body>
+        <p>Test passes if there is no red visible on the page.</p>
+        <div>Filler Text</div>
+    </body>
+</html>
+\ No newline at end of file