7 ms·

I strongly advise against hosting images, particularly photos, behind CloudFlare. I don't use it myself but I'm frequently noticing CloudFlare aggressively stri

by pdknsk 11y ago

I strongly advise against hosting images, particularly photos, behind CloudFlare. I don't use it myself but I'm frequently noticing CloudFlare aggressively stripping color-profiles from images. Most noticeable if the photo has an AdobeRGB profile, as many do. It makes skin tones in particular look very dull. I don't know if CloudFlare honors no-transform – I suspect they do, but most sites don't send it.

jgrahamc 11y ago
I would like to understand this. If a customer asks we do do image recompression to save space, and strip metadata (this is one of our services) but would like to know what this is about.
- Kalium 11y ago
  My experience in web-dev is that browser support for color profiles is dodgy at best. Much like alpha in PNGs. It's usually wiser to not rely on occasionally-supported features. PNG alpha in particular was a nightmare for me. After that I knew to look out for the pain caused by occasionally-supported features in images.
  - billyhoffman 11y ago
    This "much like alpha in PNGs" makes it sound like you think this is a recent problem we still have to deal with. It's not: http://caniuse.com/#feat=png-alpha http://caniuse.com/#feat=png-alpha PNG alpha transparency was a problem with the decade old IE6. And even then IE6 worked fine with PNG8 images that had alpha transparency. IE7 and IE8 required a 1 line style attribute to work 100% with PNG + alpha, and IE9 did away with that need altogether.
    - Kalium 11y ago
      The problem of haphazard feature support is not new, no.
malkia 11y ago
This makes it unsuitable for gfx outsourcing work. In my last job (gamedev) people were starting to use more and more of the profiles built-in the image formats we were exporting (we settled on .tiff, but also supported .png, and few others). Though I remember that sometimes previews (or was it layers) saved in the .tiff were making it 10x, 20x (not kidding) times bigger, so a special "save" plugin was done to filter these out, and on regular someone wrote a script to check for such.
- jgrahamc 11y ago
  So, if you are in that situation don't enable our "Polish" service and the images will be passed/cached untouched.
  - malkia 11y ago
    Oh, I see - I was just basing my comment on what I've read above, without even reading any CloudFlare docs. Sorry about that!
McGlockenshire 11y ago
> I don't use it myself but I'm frequently noticing CloudFlare aggressively stripping color-profiles from images They have a service that tries to perform loss-free optimization of served images. It's easy to disable, and should be disabled if you either already perform similar optimizations (optipng / pngquant, jpegtran, etc) or have images with annotations, color profiles, etc.
- deleted 11y ago
  [deleted]
TheHippo 11y ago
Do you have image "improvement" options enabled? Maybe disabling them could help.
- chinathrow 11y ago
  I think he complains about website he uses as a user, hence he should contact the owners of those websites.
andybak 11y ago
I thought color profiles were a bad idea due to inconsistant browser support. Has that changed?
- deleted 11y ago
  [deleted]

by pdknsk 11y ago

jgrahamc 11y ago

I would like to understand this. If a customer asks we do do image recompression to save space, and strip metadata (this is one of our services) but would like to know what this is about.

Kalium 11y ago
My experience in web-dev is that browser support for color profiles is dodgy at best. Much like alpha in PNGs. It's usually wiser to not rely on occasionally-supported features. PNG alpha in particular was a nightmare for me. After that I knew to look out for the pain caused by occasionally-supported features in images.
- billyhoffman 11y ago
  This "much like alpha in PNGs" makes it sound like you think this is a recent problem we still have to deal with. It's not: http://caniuse.com/#feat=png-alpha http://caniuse.com/#feat=png-alpha PNG alpha transparency was a problem with the decade old IE6. And even then IE6 worked fine with PNG8 images that had alpha transparency. IE7 and IE8 required a 1 line style attribute to work 100% with PNG + alpha, and IE9 did away with that need altogether.
  - Kalium 11y ago
    The problem of haphazard feature support is not new, no.

malkia 11y ago

This makes it unsuitable for gfx outsourcing work. In my last job (gamedev) people were starting to use more and more of the profiles built-in the image formats we were exporting (we settled on .tiff, but also supported .png, and few others). Though I remember that sometimes previews (or was it layers) saved in the .tiff were making it 10x, 20x (not kidding) times bigger, so a special "save" plugin was done to filter these out, and on regular someone wrote a script to check for such.

jgrahamc 11y ago
So, if you are in that situation don't enable our "Polish" service and the images will be passed/cached untouched.
- malkia 11y ago
  Oh, I see - I was just basing my comment on what I've read above, without even reading any CloudFlare docs. Sorry about that!

McGlockenshire 11y ago

> I don't use it myself but I'm frequently noticing CloudFlare aggressively stripping color-profiles from images They have a service that tries to perform loss-free optimization of served images. It's easy to disable, and should be disabled if you either already perform similar optimizations (optipng / pngquant, jpegtran, etc) or have images with annotations, color profiles, etc.

deleted 11y ago
[deleted]

TheHippo 11y ago

Do you have image "improvement" options enabled? Maybe disabling them could help.

chinathrow 11y ago
I think he complains about website he uses as a user, hence he should contact the owners of those websites.

andybak 11y ago

I thought color profiles were a bad idea due to inconsistant browser support. Has that changed?

deleted 11y ago
[deleted]