It should be possible to see whether the browser is indeed firing off many
requests by using the network monitor. See
https://firefox-source-docs.mozilla.org/devtools-user/network_monitor/index.html

On Fri, 27 Jun 2025 at 07:00, Travis Briggs <audiod...@gmail.com> wrote:

> Hi Martini,
>
> Ah ok. I'm not going to investigate further, but I didn't see any
> JavaScript requests when I clicked that link. So my best guess (and
> something to think about for anyone else looking into this for the sheer
> mystery of it) is that it is something at the protocol layer. That is,
> maybe some Wikipedia servers started speaking HTTP/2, or changed their HTTP
> implementation, and the old version of Firefox doesn't understand it and
> re-requests the URL many times in succession. Just a wild guess.
>
> Cheers,
> -Travis
>
> On Thu, Jun 26, 2025 at 10:50 PM Leonid G <leon...@gmx.net> wrote:
>
>> Hello Travis,
>>
>>
>>
>> On this page https://en.wikipedia.org/wiki/File:Old_map_of_Ryazan.jpg
>> for example, when I press the link at “Other resolutions: 315 × 240
>> pixels
>> <https://upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Old_map_of_Ryazan.jpg/330px-Old_map_of_Ryazan.jpg>
>> ”.
>>
>>
>>
>> Thanks and kind regards!
>>
>>
>>
>> Martini
>>
>>
>> ------------------------------
>>
>>
>>
>> Hi Martini,
>>
>>
>>
>> When you say the error 429 "comes out" what does that mean? Where is that
>> error displayed?
>>
>>
>>
>> Thanks,
>>
>> -Travis
>>
>>
>>
>> On Thu, Jun 26, 2025 at 10:40 PM Leonid G via Wikitech-l <
>> wikitech-l@lists.wikimedia.org> wrote:
>>
>> Hello Timo,
>>
>>
>>
>> thank you very much for the explanation regarding CSS. Then it’s not the
>> root of my problem!
>>
>>
>>
>> By the way, who is Tim? I haven’t got his message.
>>
>>
>>
>> The error symbol in my screenshot is appears NOT for certain types. Some
>> jpg’s show perfecty up, but most are shown as errors. This goes for png and
>> others as well.
>>
>>
>>
>> Yes. Every wiki link to a picture of Ryazan on this page (
>> https://en.wikipedia.org/wiki/File:Old_map_of_Ryazan.jpg) doesn’t work
>> for me. An error
>>
>> “Too many requests - 47f834a351bd” comes out:
>>
>>
>>
>> *If you report this error to the Wikimedia System Administrators, please
>> include the details below.*
>>
>>
>>
>> *Request served via cp5030 cp5030, Varnish XID 514771340*
>>
>> *Upstream caches: cp5030 int*
>>
>> *Error: 429, Too many requests - 47f834a351bd at Fri, 27 Jun 2025
>> 05:27:01 GMT*
>>
>>
>>
>> But the link to the source works perfectly well.
>>
>>
>>
>> And your link:
>>
>>
>> https://upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Old_map_of_Ryazan.jpg/500px-Old_map_of_Ryazan.jpg
>>
>> works for me fine as well.
>>
>>
>>
>> On the Supermium, that is overloading my system, I can see all wiki pages
>> perfectly, with all pictures and maps intact. And on Firefox 52 and 68 not.
>> So the problem is not with WinXP, it’s somewhere between the old versions
>> of Firefox and Wikipedia.
>>
>>
>>
>> Thanks and kind regards!
>>
>>
>>
>> Martini
>> ------------------------------
>>
>>
>>
>>
>>
>> On Thu, 26 Jun 2025, at 20:05, Leonid G via Wikitech-l wrote:
>>
>> […]
>>
>> On a clear morning’s mind I’m very skeptical if this tool will solve my
>> issue. Wikipedia is not actively blocking the use of my browser. Its CSS
>> seems to have been changed so the pictures and maps do not show up.
>>
>>
>>
>> So back to my question: can I do something in my side, except for
>> changing the system or the browser, to see the pictures and maps again?
>> […]
>>
>>
>>
>> The error symbol in place of the images means that CSS is not relevant
>> here.
>>
>>
>>
>> CSS is robust and protected against unknown rules. It's very rare that a
>> CSS issue could cause an image to be hidden. The only way that CSS will
>> hide an image, is if a developer intentionally applies a rule like opacity
>> 0, display none, or visibility hidden. This could in theory be done as part
>> of an animation, and perhaps the second part of such animation is
>> unsupported, in which case it could remain hidden. This would be in our
>> control to fix. However, if this was the case, the place where the image
>> goes would be blank, not display the "broken image" symbol that you see.
>>
>>
>>
>> As Tim points out, this symbol seems to only be there in your screenshot
>> for certain image image types and not others (JPEG vs PNG). That further
>> confirms there is no styling issue as that would apply to all image
>> thumbnails equally.
>>
>>
>>
>> Did you try opening it in a new tab? For example, open this link:
>>
>>
>> https://upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Old_map_of_Ryazan.jpg/500px-Old_map_of_Ryazan.jpg
>>
>>
>>
>> This is a direct image URL. There is no HTML, CSS or JavaScript in our
>> control when viewing this. If the image fails there, then there is most
>> likely something defect in the browser or operating system. If you really
>> want to rule it out further, I suggest to download ("save as") the JPEG
>> image from this exact URL on someone else's computer, and send it to
>> yourself / to this computer (perhaps by email) and then drag it into a new
>> Firefox tab / empty browser window to view it. Does it work there? If that
>> works, but the same image by URL does not, then we can revisit if there's
>> something else going on.
>>
>>
>>
>> -- Timo
>>
>>
>>
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