When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Try clearing your Browser cookies for the CO site or clear all your Browser cookies. Log out of CO and log back in. Most likely a stale cached security token is no longer valid.
Try clearing your Browser cookies for the CO site or clear all your Browser cookies. Log out of CO and log back in. Most likely a stale cached security token is no longer valid.
If you don't completely understand how to clear just the cookies for the CO site, just clear all your cookies (completely) - don't worry, they will all load again for every site you visit - you'll be just fine. We just want to get you to the point where (hopefully) clearing your cookies cache will remove any stale security tokens and allow you to get rid of the error. If this doesn't work, there are two other possibilities you can try, but first clear all your cookies, log out of CO, log back into CO, and attempt your upload again.
If the error you received (ALERT A security token was missing) was indeed related to the negotiated security token contained within your Browser between your device (iPhone, Desktop PC, iPad, tablet, etc.) and this CO site then clearing the cookies should have resolved your issue. If you have cleared the cookies off your device and you are still struggling w/ the same error, I might provide you w/ one more piece of information and, it is related to Security but in a vicarious manner.
When a peripheral device is attached to a computer (whether it is a handheld device such as a laptop, iPad, tablet, PC, phone, etc.) that peripheral device must be trusted by the device it is attached to. This "trust" (if you will) is negotiated between the two devices. Much the same way you "pair" a BlueTooth device (but not "exactly"). If you've ever plugged in a iPhone or some other peripheral device into your desktop PC, iPad, tablet, etc. that peripheral device must be "trusted" by the device you are sharing it with. Most of this happens behind the scenes, but some situations require and invoke a statement which explicitly asks "Trust this device?" e.g. iPhone. This depends on the manufacturer's software and how the security negotiation takes place. What you do need to understand in this scenario I'm explaining "might" apply to you and here is why. I recognize you own a NIKON D-850. Let's say you attempt to UPLOAD an image which resides on your NIKON D-850 onto the CO site but the NIKON D-850 has not been "trusted" by your desktop PC, iPad, laptop, etc. If you attempt to UPLOAD a file from the NIKON D-850 "directly" to this CO site, you might receive a similar error. This is a standard security feature of all devices - each device must be trusted. The security token (if you will) will not be trusted by the CO site because the CO site and your laptop, iPad, tablet, iPhone (whatever) have established the trust between each other but not with your NIKON D-850. Therefore, you must transfer, copy/paste your image from your NIKON D-850 onto the device which contains the security token (handshake) between your desktop PC, iPad, etc. Once the image (file) resides on the device where you are attempting to UPLOAD it from, you're golden. Does this make sense? This could be your issue. Ensure images you want to UPLOAD onto this CO site reside on your computer and not on your NIKON D-850. The CO site trusts your computer device but not your NIKON D-850. So, copy the file(s) you want to upload to this CO site FROM your NIKON D-850 onto your device first. You have a security token on your NIKON D-850 and a security token on your computer. The CO site trusts your computer it does not trust your NIKON D-850. I hope this makes sense to you. Again, this depends on security framework software which came with your NIKON D-850 but one thing is a certain. Your computer is trusted and you essentially negotiate one security token between your computer and this CO site when you logon. The CO site trusts your computer and any images which reside on your computer but not your NIKON D-850 until you transfer those files to your computer. Hope this helps and this might be your issue.
In a nutshell, once a file is placed on your computer, the security token on your computer is placed onto every file on your computer. Therefore, any file on your computer has a security token which is now trusted by the CO site.
Last edited by Vintage Chief; May 3, 2020 at 06:41 PM.
The CO site performs an image file compression of ~ 91% on .jpg files.
The first image above 4.15 MB was compressed and rendered to 30.7 KB (31,440 bytes)
The second image above 5.4 MB was compressed and rendered to 30.7 KB (31,440 bytes)
That is exceedingly exceptional uploading, compression and rendering.
Make sure you're not trying to upload a RAW file from your NIKON.
Attempted a 38 MB file size UPLOAD. This is the error which was produced (below). As Eric stated, your file size is too large. This is an unfortunate misnomer for this type of error because it has nothing to do with the security token missing. The only truth to this (below) statement is the fact the CO site could not negotiate this size of a file.
The message is probably generated through a software query which we do not have access to. We can just ad your findings to the how to post pictures thread.
Trouble with pictures
