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HtmlMinifier.Minify throws InvalidOperationException #77

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Metalnem opened this issue Jan 21, 2019 · 1 comment
Closed

HtmlMinifier.Minify throws InvalidOperationException #77

Metalnem opened this issue Jan 21, 2019 · 1 comment

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@Metalnem
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HtmlMinifier.Minify sometimes throws InvalidOperationException. Here's the full program to reproduce it:

namespace WebMarkupMin.Core.Run
{
  public class Program
  {
    public static void Main(string[] args)
    {
      string html = @"<head><td>m<head>l><html><body><h1>h1</h1><p>p</p></body></html>";
      new HtmlMinifier().Minify(html);
    }
  }
}

The full stack trace:

Exception has occurred: CLR/System.InvalidOperationException
An unhandled exception of type 'System.InvalidOperationException' occurred in System.Linq.dll: 'Sequence contains more than one matching element'
   at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source, Func`2 predicate)
   at WebMarkupMin.Core.Parsers.HtmlParser.ParseStartTag(String tagName, String tagNameInLowercase, IList`1 attributes, Boolean isEmptyTag)
   at WebMarkupMin.Core.Parsers.HtmlParser.ProcessStartTag()
   at WebMarkupMin.Core.Parsers.HtmlParser.Parse(String content)
   at WebMarkupMin.Core.GenericHtmlMinifier.Minify(String content, String fileContext, Encoding encoding, Boolean generateStatistics)
   at WebMarkupMin.Core.HtmlMinifier.Minify(String content)

I'm using .NET Core 2.1 and the latest NuGet version of WebMarkupMin.Core (2.5.5).

Found via SharpFuzz.
Taritsyn added a commit that referenced this issue Mar 2, 2019
@Taritsyn
Fixed a error #77 “HtmlMinifier.Minify throws InvalidOperationExcepti…
6b61171 
…on”.
@Taritsyn
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Taritsyn commented Mar 7, 2019

Hello, Nemanja!

This error is fixed in version 2.5.6. Thanks for information!

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@Taritsyn @Metalnem