From 0f1e625324fae174540bb00ccfab03895abe8cb0 Mon Sep 17 00:00:00 2001
From: Jim Derry <balthisar@gmail.com>
Date: Sat, 13 May 2017 20:46:48 -0400
Subject: [PATCH] Address #378

Addresses issue #378 by NOT emitting warnings if `fix-uri` is `no`, for HTML5
documents. This preserves existing behavior for legacy document types.
---
 src/attrs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/attrs.c b/src/attrs.c
index 4f1c449..3eccbe6 100644
--- a/src/attrs.c
+++ b/src/attrs.c
@@ -1617,7 +1617,7 @@ void TY_(CheckUrl)( TidyDocImpl* doc, Node *node, AttVal *attval)
     {
         if ( cfgBool(doc, TidyFixUri) )
             TY_(ReportAttrError)( doc, node, attval, ESCAPED_ILLEGAL_URI);
-        else
+        else if ( !(TY_(HTMLVersion)(doc) & VERS_HTML5) )
             TY_(ReportAttrError)( doc, node, attval, ILLEGAL_URI_REFERENCE);
 
         doc->badChars |= BC_INVALID_URI;