diff --git a/tree-construction/tests11.dat b/tree-construction/tests11.dat
index d325ef90..b9901e79 100644
--- a/tree-construction/tests11.dat
+++ b/tree-construction/tests11.dat
@@ -271,6 +271,62 @@
 |       ychannelselector=""
 |       zoomandpan=""
 
+#data
+<!DOCTYPE html><body><svg contentScriptType='' contentStyleType='' externalResourcesRequired='' filterRes=''></svg>
+#errors
+#document
+| <!DOCTYPE html>
+| <html>
+|   <head>
+|   <body>
+|     <svg svg>
+|       contentscripttype=""
+|       contentstyletype=""
+|       externalresourcesrequired=""
+|       filterres=""
+
+#data
+<!DOCTYPE html><body><svg CONTENTSCRIPTTYPE='' CONTENTSTYLETYPE='' EXTERNALRESOURCESREQUIRED='' FILTERRES=''></svg>
+#errors
+#document
+| <!DOCTYPE html>
+| <html>
+|   <head>
+|   <body>
+|     <svg svg>
+|       contentscripttype=""
+|       contentstyletype=""
+|       externalresourcesrequired=""
+|       filterres=""
+
+#data
+<!DOCTYPE html><body><svg contentscripttype='' contentstyletype='' externalresourcesrequired='' filterres=''></svg>
+#errors
+#document
+| <!DOCTYPE html>
+| <html>
+|   <head>
+|   <body>
+|     <svg svg>
+|       contentscripttype=""
+|       contentstyletype=""
+|       externalresourcesrequired=""
+|       filterres=""
+
+#data
+<!DOCTYPE html><body><math contentScriptType='' contentStyleType='' externalResourcesRequired='' filterRes=''></math>
+#errors
+#document
+| <!DOCTYPE html>
+| <html>
+|   <head>
+|   <body>
+|     <math math>
+|       contentscripttype=""
+|       contentstyletype=""
+|       externalresourcesrequired=""
+|       filterres=""
+
 #data
 <!DOCTYPE html><body><svg><altGlyph /><altGlyphDef /><altGlyphItem /><animateColor /><animateMotion /><animateTransform /><clipPath /><feBlend /><feColorMatrix /><feComponentTransfer /><feComposite /><feConvolveMatrix /><feDiffuseLighting /><feDisplacementMap /><feDistantLight /><feFlood /><feFuncA /><feFuncB /><feFuncG /><feFuncR /><feGaussianBlur /><feImage /><feMerge /><feMergeNode /><feMorphology /><feOffset /><fePointLight /><feSpecularLighting /><feSpotLight /><feTile /><feTurbulence /><foreignObject /><glyphRef /><linearGradient /><radialGradient /><textPath /></svg>
 #errors
