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Image compression

UserPost

6:35 am
April 6, 2011


avatarseipher

Member

posts 11

Has anyone else noticed that many images have had their quality reduced lately. I am wondering if rogers is compressing images through their proxy now. I have noticed this through browsers, apps and the app store images. I even tried switching profiles with no improvement. I am on an iPhone 3GS ios 4.0.


7:13 am
April 6, 2011


bridonca

Moderator

posts 763

I was under the impression the proxy always manipulated the image. Many times, I have even had images that ended up being bigger than the original. If you can access the site though https, the proxy cannot manipulate the images.

8:49 am
April 6, 2011


avatarseipher

Member

posts 11

I have only seen the issue for http sites. Which look fine if I switch to wifi.

10:20 am
April 6, 2011


bridonca

Moderator

posts 763

WIFI does not use Roger's Cellular network, so there is no proxy to shape the traffic when using WIFI. As for HTTPS, because it is secure, Rogers is unable to inspect and manipulate any of the data. The only thing the Rogers Proxy can do is throttle down the speed of HTTPS traffic.

12:42 pm
April 6, 2011


avatarseipher

Member

posts 11

Right, my point was that it's definitely the proxy that is changing the images. I am wondering if this is a side result of the HSPA network being turned on, as it happened around the same time.

12:50 pm
April 6, 2011


bridonca

Moderator

posts 763

It has always been the case.

6:00 am
April 7, 2011


avatarseipher

Member

posts 11

Maybe, but the quality took a major drop in the last week or two. For the past 6 months these sites have looked fine, then all of a sudden many images are too garbled to read text. Something definitely happened at this time, at least in my area.

6:15 am
April 7, 2011


bridonca

Moderator

posts 763

Rogers certainly has the ability to tweak the proxy settings on the fly, They may have even temporarily disabled the image compression for reason known only to them. Send a complaint to Speakout customer service, and see what they can do for you. Probably not much sadly :(

3:56 am
April 8, 2011


andreww

Toronto

Member

posts 660

Can you post a link to a site that you have issues with? I really haven't noticed any changes, but I usually read more text based pages when on my phone.

7:06 am
April 8, 2011


avatarseipher

Member

posts 11

I've noticed it mostly on any articles on winnipegfreepress.com, canoe.ca, m.kotaku.com.