406 error fetching images

club_caza · 2012-09-18T18:06:24.000Z

Happens to me exactly the same, and I have the same server. I tried with other images of other servers and it works perfectly. If the problem is the server type, should fix soon.

drw25 · 2012-09-20T16:20:33.000Z

Same problem for me on shared IIS hosting, redirecting URLs using custom 404 error documents.

Here’s the request from the server logs:
GET /wp-content/themes/twentyeleven-keenoxford/images/OGPLogo.png - 80 - 199.59.149.167 HTTP/1.1 Twitterbot/1.0 - - www.keenoxford.org 406 0 0 1294 191 156

Emulating that the best I can with http://www.rexswain.com/cgi-bin/httpview.cgi gives a 200 response followed by the image:

HTTP/1.1·200·OK(CR)(LF)
Content-Length:·90488(CR)(LF)
Content-Type:·image/png(CR)(LF)
Last-Modified:·Tue,·18·Sep·2012·00:58:04·GMT(CR)(LF)
Accept-Ranges:·bytes(CR)(LF)
ETag:·“1ef97aa83895cd1:9e83f”(CR)(LF)
Server:·Microsoft-IIS/6.0(CR)(LF)
X-Powered-By:·PleskWin(CR)(LF)
MicrosoftOfficeWebServer:·5.0_Pub(CR)(LF)
X-Powered-By:·ASP.NET(CR)(LF)
Date:·Thu,·20·Sep·2012·16:15:43·GMT(CR)(LF)
Connection:·close(CR)(LF)

I can only assume that the HTTP request Accept header from Twitterbot (which isn’t included in the logs) is for some reason incompatible with this.

froginthevalley · 2012-09-25T23:38:51.000Z

We are investigating 406 errors.

sislamoglu · 2012-09-25T23:46:43.000Z

Thank you so much, we will be waiting for 406’s solution while waiting for approval of @chiponline and http://www.chip.com.tr cards…

cdnjay · 2012-09-26T16:47:34.000Z

I have the same problem, also on IIS. In the interim I’ve uploaded the image to AWS S3 which seems to work fine.

SpiritOficial · 2012-09-26T16:53:00.000Z

I have same problem IIS 7.5

AkaashMaharaj · 2012-09-26T17:03:39.000Z

The problem does, indeed, seem to be that the Twitterbot (or the preview tool) is not configured to work with Microsoft-IIS servers. I similarly receive “406” errors from the preview tool when my image is hosted on my Microsoft-IIS/6.0 server, but no such errors when the same image is hosted on an Apache server.

mmatout · 2012-09-27T09:50:55.000Z

i have the same problem …

mellodev · 2012-09-30T21:43:21.000Z

I have the same issue with 406 errors. I’m using IIS 7.5 with URL Rewrite 2.0 module, although the requested image is NOT being rewritten or redirect. Returns 200 with fiddler:

HTTP/1.1 200 OK
Content-Type: image/png
Last-Modified: Thu, 13 Sep 2012 22:03:46 GMT
Accept-Ranges: bytes
ETag: "c36663a5fb91cd1:0"
Server: Microsoft-IIS/7.5
X-Powered-By: ASP.NET
Date: Sun, 30 Sep 2012 21:40:14 GMT
Content-Length: 175428

inploid · 2012-10-02T14:36:13.000Z

Same problem…

Frank_JDSupra · 2012-10-05T18:40:04.000Z

Same problem.

wesselw · 2012-10-07T16:25:00.000Z

Same problem.

ersin_ayaz · 2012-10-09T07:03:41.000Z

Same problem.

sislamoglu · 2012-10-15T04:42:52.000Z

@froginthevalley Any progress on 406 issues mate? Or any advices?

LittleAppReview · 2012-10-19T19:48:48.000Z

I get this problem too. IIS 6.0.

HarveysPoint · 2012-10-21T07:27:18.000Z

@froginthevalley Hi Sylvain, any update on 406 errors fetching images on twitter cards?

cinaradem · 2012-10-23T14:28:12.000Z

IIS 7.5 has the same problem,
could you help me.

cinaradem · 2012-10-23T14:38:55.000Z

406 problemini çözebildiniz mi acaba?

francesurf · 2012-11-01T23:33:00.000Z

I’ve got “Failed to get proxied image URL”, i’m on II6
Should it be that 406 error ?

upbot · 2012-11-13T17:58:00.000Z

Twitterbot sends this header to get a image:
Accept: text/html, text/*

IIS sends 406 error because a image is “image/jpeg” MIME type
(Twitterbot only accepts text/html, text/*)

I think the header of Twitterbot could be
Accept: / or more specific Accept: text/, image/