Re: image.ServingURL not working

[Jose Vasconcellos]

On Thursday, May 16, 2013 3:26:26 PM UTC-5, Jose Vasconcellos wrote:

Just started a new project. Using 1.8.0 and working fine on the local

development server. The problem is that on the production appengine,

image.ServingURL is not returning a valid a valid url; there are no errors

reported by the api call.

blob, err := blobstore.Stat(c, kb)

if err != nil { c.Errorf("Stat: %v",err); serveError(c, w, err); return }

url, err := image.ServingURL(c, blob.BlobKey, nil)

if err != nil { c.Errorf("ServeingURL: %v",err); serveError(c, w, err); return }

I've verified that the blobs exists through the blobstore viewer. For example, the go app

responds with a list of images that looks like this:

[["back-200x200.jpg","/2hwrtuHZ830X7dmS3MUd9Hz57m2wmwAqMkwi-con9SCkdoXBhZ3xDMaTaH5tPfLZrjHIlBxevgAsOKTUBSTqQOk"],["front-200x200.jpg","/cciRG-fmCR3hoGqtMc8PZ0pTDfZVSUv21N6WS5NJ1EleE9VXY8xLBASkDPhswFihimICDFSztVbsz0saaRceKPE"]]

on the development server it looks like this:

[["back-200x200.jpg","/_ah/img/ueNsp-HONVcLq7qpn_8z9Q=="],["front-200x200.jpg","/_ah/img/vBzgvM4xF_uksCvBy8m2Pw=="]]

I thought the URL generated should start with /_ah/img/ or have some /_ah/ prefix

but that doesn't seem to be the case on the appengine.

I must be missing something!

I should clarify that requests to the url are returning 404. Is there some

change that needs to be made to the app.yaml file? In  my current setup,

the routing looks like this:

- url: /.*

  script: _go_app

  secure: always

But I assume that appengine will handle these requests before it gets

to the application.

[Andrew Gerrand]

You could try it without the "secure: always"? Although I don't see why that should be the problem.

Does it never work for any kind of image?

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[Jose Vasconcellos]

I've only tried jpeg files. My work around is to use the blobstore api to

serve the images. Removing the "secure: always" means serving mixed

content which I don't want to deal with.