diff --git a/src/HtmlSanitizer/HtmlSanitizer.cs b/src/HtmlSanitizer/HtmlSanitizer.cs
index 90f6015..562e690 100644
--- a/src/HtmlSanitizer/HtmlSanitizer.cs
+++ b/src/HtmlSanitizer/HtmlSanitizer.cs
@@ -482,7 +482,7 @@ namespace Ganss.XSS
using (var dom = parser.Parse(html))
{
- DoSanitize(dom, dom.DocumentElement, baseUrl);
+ DoSanitize(dom, dom, baseUrl);
var output = dom.ToHtml(outputFormatter ?? OutputFormatter);
@@ -503,7 +503,7 @@ namespace Ganss.XSS
using (var dom = parser.Parse(html))
{
- DoSanitize(dom, dom.DocumentElement, baseUrl);
+ DoSanitize(dom, dom, baseUrl);
var output = dom.ToHtml(outputFormatter ?? OutputFormatter);
@@ -542,7 +542,7 @@ namespace Ganss.XSS
}
}
- private void DoSanitize(IHtmlDocument dom, IElement context, string baseUrl = "")
+ private void DoSanitize(IHtmlDocument dom, IParentNode context, string baseUrl = "")
{
// remove non-whitelisted tags
foreach (var tag in context.QuerySelectorAll("*").Where(t => !IsAllowedTag(t)).ToList())
@@ -607,9 +607,9 @@ namespace Ganss.XSS
}
}
- RemoveComments(context);
+ RemoveComments(context as IElement);
- DoPostProcess(dom, context);
+ DoPostProcess(dom, context as IElement);
}
private void SanitizeStyleSheets(IHtmlDocument dom, string baseUrl)
diff --git a/test/HtmlSanitizer.Tests/Tests.cs b/test/HtmlSanitizer.Tests/Tests.cs
index 7505510..9c22b6e 100644
--- a/test/HtmlSanitizer.Tests/Tests.cs
+++ b/test/HtmlSanitizer.Tests/Tests.cs
@@ -3135,6 +3135,19 @@ zqy1QY1kkPOuMvKWvvmFIwClI2393jVVcp91eda4+J+fIYDbfJa7RY5YcNrZhTuV//9k="">
Assert.True(anyNodeRemoved);
Assert.Equal("", actual);
}
+
+ [Fact]
+ public void HtmlDocumentTest()
+ {
+ // https://github.com/mganss/HtmlSanitizer/issues/164
+
+ var sanitizer = new HtmlSanitizer();
+ var html = @"";
+
+ var actual = sanitizer.SanitizeDocument(html);
+
+ Assert.Equal("", actual);
+ }
}
}