RaygunClient.Send() fails if two cookies have same name (due to different subdomains)

I started getting an error on the call to Send(). It seems to happen when there are 2 cookies with the same name in in Request["cookies"] in ASP.NET. On my site it is possible this happens because cookies may be added under the main domain ".domain.com" and the subdomain ".www.domain.com".

Here is the error:

System.ArgumentException: An item with the same key has already been added.
   at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
   at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer)
   at Mindscape.Raygun4Net.Messages.RaygunRequestMessage.GetCookies(HttpCookieCollection cookieCollection, IEnumerable`1 ignoredFormNames)
   at Mindscape.Raygun4Net.Messages.RaygunRequestMessage..ctor(HttpRequest request, List`1 ignoredFormNames)
   at Mindscape.Raygun4Net.RaygunMessageBuilder.SetHttpDetails(HttpContext context, List`1 ignoredFormNames)
   at Mindscape.Raygun4Net.RaygunClient.BuildMessage(Exception exception, IList`1 tags, IDictionary userCustomData)
   at Mindscape.Raygun4Net.RaygunClient.Send(Exception exception, IList`1 tags, IDictionary userCustomData)

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Hi,

Thanks for the bug report. This appears to be due to our work splitting the cookies out from the rest of the HTTP headers - I've got an idea how to fix it, but I won't be able to get to it fixed till early next week. It'll require a little bit of work to both the website and the Raygun4net, but it's late on a Friday afternoon and we try not to do a release just before disappearing for the weekend.

My plan is to group the cookies up by domain, instead of just showing a list of them. Then it won't matter if there are overlaps between the domains.

I'll update this thread when the work is done.

Cheers, Jamie

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Thanks so much for the quick response! I understand about the timing. Let me know if I can help by providing any more information. Have a great weekend.

john

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No worries John, your stack trace was enough to figure out the problem. Thanks, and have a great weekend yourself (whenever that starts).

Cheers, Jamie

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Hi John,

We've pushed out a new version of the Raygun4NET library to Nuget and an update to the website to support that. If you update to the latest version of Raygun4NET, the problem will disappear. I didn't quite get my way with the cookies (the browser doesn't send back the domain that sent the cookies, I should have remembered that) but I have made sure it lists all the cookies set, even duplicates.

If you have any other issues, please let me know.

Cheers, Jamie

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Great! Updating now. Thanks so much for the quick response.

John

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