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Headers keys and values intermix

Apologies if this is the wrong place to ask this because I'm at my wits end on this one. I work on an app that is used by a large amount of users. Starting october 14th a… (read more)

Apologies if this is the wrong place to ask this because I'm at my wits end on this one. I work on an app that is used by a large amount of users. Starting october 14th around 7am (UTC+1) we started observing weird behavior where a small ammount of traffic (less that 1%) would have abnormal header values:

'custom-header-1':'[custom value], [custom value of a different header]'; 'custom-header-2':'[custome value of header 2], u=4'; 'sec-fetch-site':'cors'; 'priority':'same-origin'; 'sec-fetch-mode':'empty';

As you can see the values of these headers are mixed with one another in almost a deliberate manner (since it appended the u=4 with a comma separator and a space from the priority into the custom header 2 value). There is nothing in the client code that would do this kind of manipulation, and from examining the logs this only happens on Mozilla browser traffic starting version 144 (which was released on October 14th coincidentally). Not that this does not impact all Firefox traffic. In fact, just a tiny fraction of traffic from random users and it's not even all of their traffic of an active session. Just random requests that then fail, are retried and the abnormal headers are gone.

I doubt the fault lies in firefox. If I had to hazard a guess it's probably some extension acting up, but the timing coinciding with the release of 144 give me the only troubleshooting path I have right now since contacting the users is not possible. We've seen it happen 145 as well.

I'm not really looking for a solution here, just a shot in the dark if someone else has experienced this or has some insight as of what this could be.

Asked by Luis 2 days ago

SERVER ERRORS

Ive been receiving server failure reports from several links at numerous websites including zillow and carvana. Links that I try to open from Mozilla Thunderbird, receive… (read more)

Ive been receiving server failure reports from several links at numerous websites including zillow and carvana. Links that I try to open from Mozilla Thunderbird, receive the error or show only a blank page. Is there an issue with Firebird or Thunderbird at this time?

Asked by mayng1 3 days ago

Firefor not loading secondary websites

I recently asked a question about having a problem with Firefox not successfully loading a second webpage tab. While it appears to start loading correctly in a new tab t… (read more)

I recently asked a question about having a problem with Firefox not successfully loading a second webpage tab. While it appears to start loading correctly in a new tab the tab remains a blank page and the address window continues to appear that the loading process is ongoing but it just continues to show the apparent loading process but the network has no activity. I tried following some suggestions but to no avail. I then uninstalled Firefox and did a clean, new install. Upon trying the new install it appeared to work correctly at first but after attempted to do a second Google image search, which worked correctly, I tried to visit the site that what contained the original image. The site partially loaded; appeared to keep loading for about 15 minutes; stopped; and I got a partially installed page and even that wasn’t correct as can be seen in the enclosed images.

Asked by BobR43 4 days ago

AMEX Website

A few days ago I started getting the below message when logging into my AMEX account. Any ideas how this can be fixed? Internal Server Error - Read The server encountere… (read more)

A few days ago I started getting the below message when logging into my AMEX account. Any ideas how this can be fixed?

Internal Server Error - Read The server encountered an internal error or misconfiguration and was unable to complete your request.

Reference #3.66c83017.1762797797.7b5513f5

https://errors.edgesuite.net/3.66c83017.1762797797.7b5513f5

Asked by lporteriv 5 days ago