Support for S3 Presigned URLs?

[magicjar]

Which version are you using?

1.0.1

Bug summary

Hi,

First of all, thanks for this great library! I have been using it and it works flawlessly when loading images from a unsigned S3 link. However, when I try to use a Presigned URL, I encounter the following error.

SixLabors.ImageSharp.UnknownImageFormatException: Image cannot be loaded. Available decoders:
 - Webp : WebpDecoder
 - TIFF : TiffDecoder
 - TGA : TgaDecoder
 - GIF : GifDecoder
 - PBM : PbmDecoder
 - BMP : BmpDecoder
 - PNG : PngDecoder
 - QOI : QoiDecoder
 - JPEG : JpegDecoder

   at SixLabors.ImageSharp.Formats.ImageFormatManager.ThrowInvalidDecoder(ImageFormatManager manager)
   at SixLabors.ImageSharp.Image.InternalDetectFormat(Configuration configuration, Stream stream)
   at SixLabors.ImageSharp.Image.DiscoverDecoder(DecoderOptions options, Stream stream)
   at SixLabors.ImageSharp.Image.DecodeAsync(DecoderOptions options, Stream stream, CancellationToken cancellationToken)
   at SixLabors.ImageSharp.Image.<>c__DisplayClass82_0.<LoadAsync>b__0(Stream s, CancellationToken ct)
   at SixLabors.ImageSharp.Image.WithSeekableStreamAsync[T](DecoderOptions options, Stream stream, Func`3 action, CancellationToken cancellationToken)
   at SixLabors.ImageSharp.Web.FormattedImage.LoadAsync(DecoderOptions options, Stream source)
   at SixLabors.ImageSharp.Web.Middleware.ImageSharpMiddleware.ProcessRequestAsync(ImageCommandContext imageCommandContext, IImageResolver sourceImageResolver, ImageContext imageContext, Boolean retry)
   at SixLabors.ImageSharp.Web.Middleware.ImageSharpMiddleware.ProcessRequestAsync(ImageCommandContext imageCommandContext, IImageResolver sourceImageResolver, ImageContext imageContext, Boolean retry)
   at SixLabors.ImageSharp.Web.Middleware.ImageSharpMiddleware.Invoke(HttpContext httpContext, Boolean retry)
   at Microsoft.AspNetCore.Localization.RequestLocalizationMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.RequestLocalization.AbpRequestLocalizationMiddleware.InvokeAsync(HttpContext context, RequestDelegate next)
   at Microsoft.AspNetCore.Builder.UseMiddlewareExtensions.InterfaceMiddlewareBinder.<>c__DisplayClass2_0.<<CreateMiddleware>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)

Questions:

• Does this library support S3 presigned URLs?
• If not, is there a recommended workaround?

Steps to reproduce

Load any image from S3 presigned url

Expected result / actual result

It should load and ImageSharp will cache it