Specified argument was out of the range of valid values. (Parameter 'part')

[GradyD]

Any idea why this would be happening?

Describe the bug
VERBOSE: Task faulted: System.AggregateException: One or more errors occurred. (Specified argument was out of the range of valid values. (Parameter 'part'))
---> System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values. (Parameter 'part')
at DocumentFormat.OpenXml.Packaging.OpenXmlPartContainer.GetIdOfPart(OpenXmlPart part)
at HtmlToOpenXml.IO.ImagePrefetcher1.DownloadRemoteImage(String src, CancellationToken cancellationToken) in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/IO/ImagePrefetcher.cs:line 134 at HtmlToOpenXml.IO.ImagePrefetcher1.Download(String imageUri, CancellationToken cancellationToken) in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/IO/ImagePrefetcher.cs:line 89
at HtmlToOpenXml.HtmlConverter.<>c__DisplayClass19_0.<b__2>d.MoveNext() in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/HtmlConverter.cs:line 288
--- End of stack trace from previous location ---
at System.Threading.Tasks.Parallel.<>c__53`1.<b__53_0>d.MoveNext()
--- End of stack trace from previous location ---
at HtmlToOpenXml.HtmlConverter.PreloadImages(IDocument htmlDocument, IImageLoader imageLoader, ParallelOptions parallelOptions) in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/HtmlConverter.cs:line 287
at HtmlToOpenXml.HtmlConverter.ParseCoreAsync(String html, OpenXmlPartContainer hostingPart, IImageLoader imageLoader, ParallelOptions parallelOptions, ParagraphStyleId defaultParagraphStyleId) in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/HtmlConverter.cs:line 261
at HtmlToOpenXml.HtmlConverter.ParseBody(String html, CancellationToken cancellationToken) in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/HtmlConverter.cs:line 166
--- End of inner exception stack trace ---
VERBOSE: Task faulted: One or more errors occurred. (Specified argument was out of the range of valid values. (Parameter 'part'))
Expected behavior
A clear and concise description of what you expected to happen.

Repro
Please include the Html snippet and/or the docx/dotx if relevant

[GradyD]

I tested this on my own using powershell and when I use an invoke-webrequest it downloads the image just fine without any headers/auth, it is a public image.

I'm not sure why it is failing when using Html2OpenXml or what I need to adjust to make it function. I did try and use new DefaultWebRequest(null, logger) to get additional logs but since this is all in powershell I don't have the iLogger factory to get additional details. I also noticed that it will sometimes succeed in my testing, only randomly failing.

I also get this error related to the HTMLConverter class.

VERBOSE: Task faulted: System.AggregateException: One or more errors occurred. (Unable to read beyond the end of the stream.)
 ---> System.IO.EndOfStreamException: Unable to read beyond the end of the stream.
   at HtmlToOpenXml.IO.ImageHeader.DetectFileType(SequentialBinaryReader reader) in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/IO/ImageHeader.cs:line 128
   at HtmlToOpenXml.IO.ImageHeader.TryDetectFileType(Stream stream, FileType& type) in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/IO/ImageHeader.cs:line 63
   at HtmlToOpenXml.IO.ImagePrefetcher`1.TryGuessTypeFromStream(Stream stream, PartTypeInfo& type) in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/IO/ImagePrefetcher.cs:line 229
   at HtmlToOpenXml.IO.ImagePrefetcher`1.DownloadRemoteImage(String src, CancellationToken cancellationToken)
   at HtmlToOpenXml.IO.ImagePrefetcher`1.Download(String imageUri, CancellationToken cancellationToken) in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/IO/ImagePrefetcher.cs:line 89
   at HtmlToOpenXml.HtmlConverter.<>c__DisplayClass19_0.<<PreloadImages>b__2>d.MoveNext() in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/HtmlConverter.cs:line 288
--- End of stack trace from previous location ---
   at System.Threading.Tasks.Parallel.<>c__53`1.<<ForEachAsync>b__53_0>d.MoveNext()
--- End of stack trace from previous location ---
   at HtmlToOpenXml.HtmlConverter.PreloadImages(IDocument htmlDocument, IImageLoader imageLoader, ParallelOptions parallelOptions) in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/HtmlConverter.cs:line 287
   at HtmlToOpenXml.HtmlConverter.ParseCoreAsync(String html, OpenXmlPartContainer hostingPart, IImageLoader imageLoader, ParallelOptions parallelOptions, ParagraphStyleId defaultParagraphStyleId) in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/HtmlConverter.cs:line 261
   at HtmlToOpenXml.HtmlConverter.ParseBody(String html, CancellationToken cancellationToken) in /Users/olivier/Projects/html2openxml/src/Html2OpenXml/HtmlConverter.cs:line 166
   --- End of inner exception stack trace ---