The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Anyone who knows where to find the actual source code of the Stack Overflow / Stack Exchange WYSIWYG editor? (it has a strikethrough bug)

Posted by jpluimers on 2026/08/27

I edited an answer to [Wayback/Archive] git – View rendered output of a gist? – Stack Overflow¹ and it appears that Stack Overflow / Stack Exchange have introduced a WYSIWYG editor of which the help still points to the old Markdown editor.

[Wayback/Archive] Markdown Editing Help – Stack Overflow

The problem is that the new WYSIWYG editor generates Markdown that in part cannot be properly rendered by the Markdown question / answer viewer (for instance, strikethrough is emitted as by the WYSIWYG editor in Markdown as ˜˜strikethrough˜˜ but the viewer can only render <s>strikethrough</s>.

Since their meta sites are toxic as hell:

is there anyone that knows where to find the source code of the Stack Overflow / Stack Exchange  WYSIWYG editor?

Thanks!

From the links below, I doubt the StackExchange pagedown repository is the one as it has been unmaintained since 2012 and the WYSIWYG editor is still in beta: I would have expected bug fixes over time, but there aren’t. Or maybe that all is caused by the toxicity on their platform?

This was my queste for information and some of the links I found:

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Posted in Development, Lightweight markup language, MarkDown, Pingback, SocialMedia, Software Development, StackExchange, Stackoverflow | Leave a Comment »

I didn’t realise there were so many power supply models for MikroTik Routers and Wireless (via their Products page)

Posted by jpluimers on 2026/08/27

Lot’s of power supplies on [Wayback/Archive] MikroTik Routers and Wireless – Products, most (except the internal ones) I listed below grouped by output voltage and amperage (and wattage which I rounded down).

I didn’t realise there were so many and that there basically is no consistent naming scheme.

24V

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Posted in Development, Hardware, Hardware Development, MikroTik, Network-and-equipment, Power User, routers | Leave a Comment »

Some links on finding the redirection target of a URL from within a web-browser

Posted by jpluimers on 2026/08/26

Likely what I want is not possible because of CORS or CSP (both security features, often mixed up in writings), but just in case below are some links I found.

The problem at hand was that I wanted to use the functionality of a site like [Wayback/Archive] Redirect Checker | Check your Statuscode 301 vs 302, but on the client side because sometimes redirects depend on locality (for example, but not limited to, AliExpress sites).

Thinks like these fail with CSP errors like Refused to connect to 'https://t.co/Ui4Wmesq1j' because it violates the following Content Security Policy directive: "connect-src chrome://resources chrome://theme 'self'".:

var xhr = new XMLHttpRequest();
xhr.onload = function() {
  if (this.status < 400 && this.status >= 300) {
    console.log('request redirects to ' + this.getResponseHeader("Location"));
  } else {
    console.log('request does not redirect');
  }
}
xhr.open('HEAD', 'https://t.co/Ui4Wmesq1j', true);
xhr.send();

Links – many of them mentioning CORS, but few CSP:

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Posted in Communications Development, Development, HTTP, Internet protocol suite, Software Development, TCP, Web Development | Tagged: , , | Leave a Comment »

ceceradio/twitter-block-chain: Chrome extension to block all users on a followers/following page.

Posted by jpluimers on 2026/08/26

Cool: [Wayback/Archive] ceceradio/twitter-block-chain: Chrome extension to block all users on a followers/following page.

On the play store: [Wayback/Archive] Twitter Block Chain – Chrome Web Store

Via: [Wayback/Archive] Ӏօղցմìçհ on Twitter: “Weet iemand een goede tool om alle volgers van iemand in een klap te blocken ? En dan liefst een tool die niet 30 dollar per maand kost ..” / Twitter

It’s not just cool because of the functionality, but also because it is a relatively small extension from which I hopefully can learn a bit or two when starting to write my own extensions.

–jeroen

Posted in Chrome, CSS, Development, HTML, HTML5, JavaScript/ECMAScript, Scripting, Software Development, Web Browsers, Web Development | Leave a Comment »

Not doing CSS much, I was this years old to learn about “font-variant-numeric: tabular-nums”

Posted by jpluimers on 2026/08/25

Via the below BSKY post (some call these skeets), I learned about the CSS feature “font-variant-numeric: tabular-nums” which switches on the OpenType tnum feature of fonts that support it.

More and more supports these tabular numerics, which makes all digits equally wide making both numbers in tables and lists as well as quickly changing numbers like sub-second timers a lot easier to read.

Failing example due to WordPress ditching the style

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Posted in CSS, Development, Font, Google, GoogleFonts, HTML, Power User, Software Development, Web Development | Leave a Comment »

PiKVM with MacMini: Uptimelab hardware hacks by @Merocle

Posted by jpluimers on 2026/08/25

For my link archive:

Related (some are older versions of the above):

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Posted in Apple, Development, Hardware, Hardware Development, KVM keyboard/video/mouse, Mac, MacMini, PiKVM / Pi-KVM, Power User, Raspberry Pi | Leave a Comment »

This could help debugging issues with Cloudflare hosted sites: /cdn-cgi/ endpoint · Cloudflare Fundamentals docs

Posted by jpluimers on 2026/08/24

If I ever run into a Cloudflare hosted site, I should try fiddling with the site-specific /cdn-cgi/ endpoint that Cloudflare automagically adds: [Wayback/Archive] /cdn-cgi/ endpoint · Cloudflare Fundamentals docs

Via [Wayback/Archive] Dr. Christopher Kunz: “I didn’t know this and it migh…” – chaos.social

I didn’t know this and it might really be handy with debugging weird Cloudflare issues (like pages not loading): Cloudflare adds an URL endpoint to each domain that they host, /cdn-cgi. It has, amongst others, the /cdn-cgi/trace endpoint that shows which data center services your request. More docs here: https://developers.cloudflare.com/fund

The/cdn-cgi/trace endpoint is documented at [Wayback/Archive] Gathering information for troubleshooting sites · Cloudflare Support docs

--jeroen

Posted in CDN (Content Delivery Network), Cloud, Infrastructure | Leave a Comment »

Dell R730 – Google Search

Posted by jpluimers on 2026/08/24

For my link archive: [Wayback/Archive] dell r730 – Google Search because I first wanted to run a Dell PowerEdge R730 16 Bay SFF, but ended up using the Dell PowerEdge R730xd 24 Bay SFF (plus an additional two 2.5 inch devices in the back) running ESXi on it.

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Posted in Dell PowerEdge R730, ESXi6, ESXi7, Hardware, Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »

Why are the Units for Thermal Conductivity W/mK?

Posted by jpluimers on 2026/08/21

Related to Thermal conductivity – Wikipedia and List of thermal conductivities – Wikipedia is [Wayback/Archive] Why are the Units for Thermal Conductivity W/mK?

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Posted in Power User, LifeHacker, science, Mathematics, Physics | Leave a Comment »

Andrea on Twitter: Your Swimsuit Colour Matters in the Water

Posted by jpluimers on 2026/08/21

The colour of safety gear at sea is no accident: [Wayback/Archive] Andrea on Twitter:

Your Swimsuit Color Matters in the Water

which Google Lens [Wayback/Archive] thinks originates from [Wayback/Archive] The safest swimsuit colors underwater for kids to wear – Reviewed.

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Posted in Power User, LifeHacker | Leave a Comment »

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