Cloudfront custom-origin distribution returns 502 ERROR The request could not be satisfied for some URLs

Question

We have a Cloudfront distribution with custom origin that has been working just fine for quite a long time  serving static assets for one of our sites  Just this morning  we noticed that our logo was displaying as a broken link   Upon further investigation  Cloudfront is returning a strange error message that I ve never seen before for the URL in question      ERROR      The request could not be satisfied                   Generated by cloudfront  CloudFront    Several other Cloudfront URLs from this distribution return the same error  but then others  again  from the same distribution  are working just fine  I don t see a pattern to what works and what doesn t   Some other data points    The origin URLs work just fine  There s been no recent interruption in service  to my knowledge   I ve invalidated the logo URL specifically  to no effect  I ve invalidated the root URL of the distribution  to no effect    Any idea what s going on here  I ve never seen Cloudfront do this before   UPDATE   Here s the verbatim HTTP response from Cloudfront     http GET https   d2yu7foswg1yra cloudfront net static img crossway logo png HTTP 1 1 502 Bad Gateway Age  213 Connection  keep-alive Content-Length  472 Content-Type  text html Date  Wed  18 Dec 2013 17 57 46 GMT Server  CloudFront Via  1 1 f319e8962c0268d31d3828d4b9d41f98 cloudfront net  CloudFront  X-Amz-Cf-Id  H HGBG3sTOqEomHzHubi8ruLbGXe2MRyVhGBn4apM0y LjQa 9W2Jg   X-Cache  Error from cloudfront   lt  DOCTYPE HTML PUBLIC  -  W3C  DTD HTML 4 01 Transitional  EN   http   www w3 org TR html4 loose dtd  gt   lt HTML gt  lt HEAD gt  lt META HTTP-EQUIV  Content-Type  CONTENT  text html  charset iso-8859-1  gt   lt TITLE gt ERROR  The request could not be satisfied lt  TITLE gt   lt  HEAD gt  lt BODY gt   lt H1 gt ERROR lt  H1 gt   lt H2 gt The request could not be satisfied  lt  H2 gt   lt HR noshade size  1px  gt   lt  BODY gt  lt  HTML gt    lt BR clear  all  gt   lt HR noshade size  1px  gt   lt ADDRESS gt  Generated by cloudfront  CloudFront   lt  ADDRESS gt   lt  BODY gt  lt  HTML gt

User · Answer

I had this error today with Amazon Cloudfront. It was because the cname I used (e.g cdn.example.com) was not added to the distribution settings under "alternate cnames", I only had cdn.example.com forwarded to the cloudfront domain in my site/hosting control panel, but you need to add it to Amazon CloudFront panel too.

~ Answered on 2014-05-12 00:33:36

Cloudfront custom-origin distribution returns 502 "ERROR The request could not be satisfied." for some URLs

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