Bitcoin Forum

Sorry if this has been posted about before. A search didnt reveal any prior threads.

I see a lot of images not loading in the altcoin section. Is this a known problem or is there perhaps some maintenance that needs to be done in the underbelly of the forum software ?

regards, J

If the images are too large they won't show. Not sure if this is the problem or not.

No, seems to be an issue with the bitcointalk image proxifier - sometimes they load, other times they don't.. image size may still be a factor (as a bunch of thumbnails in one of my threads load just fine), but e.g. i.imgur.com/6I1u1XK.png isn't all that large (685x358@33.2kB)

Actually I dont think size is an issue.

The tiny twitter logo won't load half of the time in the Hirocoin announcement.

If an image doesn't load consistently (or at least frequently), and it doesn't break any image rules that would cause it to be rejected by the proxy, send me a link to the image or proxied image.

Image rules are:
- Must be less than 2.5 MB
- The entire transfer must take less than 3 seconds.
- The proxied server must not keep the connection open for "a long time" without transferring data.

Well, as per the example:
https://i.imgur.com/6I1u1XK.png

( Which, of course, resulted in the following preview: http://imgur.com/4xn3TpM )

Edit: Error message from the web dev tools:
Path: https://ip.bitcointalk.org/?u=http%3A%2F%2Fi.imgur.com%2F6I1u1XK.png&t=538&c=RmGD7MXuH0mLtg
Status: net::ERR_CONNECTION_REFUSED

That works fine for me. Is it broken for anyone else?

That's the thing... it's intermittent.  For example, I clicked here from the notification e-mail - it was fine.  I refresh, it's broken. ( 16 refreshes later, still broken ... edit: and the very next refresh, working again :) ).

Edit 1: actually, I noticed that the thumbnails in my StickMiners thread (https://bitcointalk.org/index.php?topic=464496.0) also seem to either load, or not load.  Since that has quite a few, small, images in it, might be easier to test with.

Let me know if I can enable / check anything for more technical details.
That's the thing... it's intermittent.  For example, I clicked here from the notification e-mail - it was fine.  I refresh, it's broken. ( 16 refreshes later, still broken ... edit: and the very next refresh, working again :) ).

Edit 2: actually, I noticed that the thumbnails in my StickMiners thread (https://bitcointalk.org/index.php?topic=464496.0) also seem to either load, or not load.  Since that has quite a few, small, images in it, might be easier to test with.

Let me know if I can enable / check anything for more technical details.

Edit 3: The headers sent for the images that won't load appear to be incomplete;

vs successful


Will see what FireFox does.  Maybe Chrome's having a fit.

FireFox is fine.  Cleared Chrome's cookies, but that didn't help ( or made it worse, now no images load :D )
Will check if an addon is misbehaving.

Edit 4: Incognito window still has this problem.

Edit 5: old_chrome.exe also has the problem, so if it is a chrome issue, it's been there for a bit..

This kind of problem is usually due to the image being located on some overloaded shared hosting provider.

There is a company that is mostly under the radar, that has acquired many domain and web hosting companies and moved their customers to unresponsive crappy overloaded servers that often don't respond for many seconds: http://en.wikipedia.org/wiki/Endurance_International_Group

I've been using Chrome for quite some time, but this just started for me as well over the last couple weeks. I didn't notice a Chrome updates lately, but wasn't really watching either.

Seems to just be hit or miss, sometimes they load sometimes not.

I did slightly change the way that the proxy works recently, but I don't know how the change could cause this problem.

A lot of images arent loading properly. It was much better before!

EDIT: Around 90% of the images.

Yes.  I have loaded this page 20 times with no luck:

https://bitcointalk.org/index.php?topic=178336.msg5902307#msg5902307

And for what it's worth look at what I am currently typing into:

https://i.imgur.com/R6OyPzQ.jpg

Hopefully you can see it.  It's a broken jpeg for me. ;)  I am getting a 502 for the image links.  Perhaps you are doing something now Theymos.

Proxy test.

This picture should load instantly, it's two colors and 243 bytes:
http://we.lovebitco.in/img/MaCy.png

This is a bigger image, 353kB:
http://we.lovebitco.in/img/bitcoin-mock.png

Same image, hosted on imgur.com:
https://i.imgur.com/MnqJcc1.png

This image loads in about 0.2 ms, is 1.4kB, but generated by php.
http://we.lovebitco.in/img/clock3.php

This image requires over a second, it gets data from a third-party web site:
http://we.lovebitco.in/img/cal.php

fwiw - none of those loaded here :)

Edit: woop - now they do.
Edit: yeah, no, now they don't.

It probably is a Chrome thing, due to it not sending the Cookie(s) for some of the images.  Haven't seen any bug reports on that, though.

People have been complaining about this the last week or so:








I use chrome and personally haven't had ANY problems viewing images. I also automatically block cookies.

I think that I figured it out. Chrome was creating so many connections that the server was temporarily thinking of you as an attacker and dropping your packets. Other browsers also do this sometimes, though not as much. I increased the limits for this. But really, browsers should not be creating 30+ connections to the same server...

All of those worked for me on first load.  This time.  lets see what happens again

Next load the last image didnt work.. but overall more seems to be working.

Thank you! This fixed it.

Thanks for the fix...

Seems a discussion with devs was here:

https://productforums.google.com/forum/#!topic/chrome/XUc4eFH98Ck

Interesting link, cAPSLOCK.  I tried searching for a way to limit the number of simultaneous connections per host, and there was a whole lot of discussion about how it's not possible, or old discussions about how it's possible if you change a windows/IE registry key (I guess Chrome could be re-using those), etc. but they all seemed to say that Chrome was limiting itself to just a handful of connections anyway, and were people asking about how to increase that limit.

Either way, it does appear to be fixed/worked around - though I can understand it being undesirable on bitcointalk.org's end.  Not sure if the new forum software under development can help there, though in theory a page can dynamically insert content in a staggered manner, so that e.g. only 4 images are loaded at a time.

I've never really understood the allure of custom forum development when mature extensible solutions like vbullitin exist and are most certainly capable of handling bitcointalk's throughput...

To be honest SMF is not so bad either really... 

Style sheets aren't loading reliably either.

Been bad for the last couple of days,

Now working 95% of the time!

Thanks to whoever fixed it.

style sheet's broken again, but oddly only on firefox. Working fine on Safari. w.e.i.r.d....

Did you try to force refresh?

Yup... everything. posted screenshots on a thread I started for this earlier
https://bitcointalk.org/index.php?topic=609394

Try what theymos suggested (try going to the stylesheet directly).

My problem got solved. It was a cache issue in firefox

Solution: https://bitcointalk.org/index.php?topic=609394

Maybe it could work for the people having issues with images not loading properly as well?

I haven't had that issue since they tweaked something at the image proxy side, except for when I made the 'Homage to The Block Erupter' post and had to refresh often to fix formatting issues (SMF is so fickle when it comes to table column widths.), thus running into the new limits.  Note that I still don't know why Chrome creates so many simultaneous connections in the first place, but at least for regular forum browsing, all is well on that front.