Recently, I’ve looked at two Sitecore sites (not written by me!) where areas of the page (<div> tags) have a background image set by inline-CSS. For example, something like this:
Which has markup like this:
Okay, what’s wrong with this? Continue reading “Use Sitecore Image Resizing even for Background-Images”
So, the Government offer us a regex to validate UK postcodes. According to Wikipedia it should be:
^([Gg][Ii][Rr] 0[Aa]{2})|((([A-Za-z][0-9]{1,2})|(([A-Za-z][A-Ha-hJ-Yj-y][0-9]{1,2})|(([A-Za-z][0-9][A-Za-z])|([A-Za-z][A-Ha-hJ-Yj-y][0-9]?[A-Za-z])))) [0-9][A-Za-z]{2})$
Nice. That’s not complicated, is it? Continue reading “UK Postcode Validation Regex”
I saw this weird warning in Chrome’s DevTools while looking at a site:
OTS parsing error: invalid version tag
Uh-huh. That’s a bit strange. Unable to download fonts? What caused that?
Well, I tried going to the font’s URL – and got the ‘Page Not Found’ page! Well, that’s annoying – but a 404 page is clearly not a font.
However, this site’s error pages return HTTP 200 – so Chrome expects a font…
Make sure your error pages return a correct HTTP status code. If you don’t, it can cause problems. Normally, I find that it’s false positives on automated penetration tests, but this is a new and exciting variation.
Scott Helme has posted a number of interesting blog posts recently:
I mean, he’s a bit of a LetsEncrypt fan, but equally, their certificates are as good as others, and EV Certs and SSL Warranties do seem to be sources of revenue generation, rather than offering something useful.
What I’d really like is an easy way to use LetsEncrypt with IIS; for a long time it has seemed like a second-class citizen. Or maybe scripting is just more awkward in Windows. Either way, it’d be great to have simple tooling to support automatically renewing IIS site certs.
Then we could reduced certificate lifetimes and overcome the problems of the broken revocation process in certificates.
Recently I stumbled across this excellent note from Nathanael Mann – Did you really mean .Controller() in Sitecore MVC? – it’s worth a read.
The short form – you’ll want to use:
@Html.Sitecore().Rendering("[GUID of the Rendering]", new { Cacheable=true, Cache_VaryByData=true })
… so you don’t skip caching.
A gentle note to myself – If I suddenly start getting errors from Sitecore of the form:
Exception: System.InvalidOperationException
Message: Error while rendering view: ‘/Views/Common/Layouts/WebLayout.cshtml’ (model: ‘Sitecore.Mvc.Presentation.RenderingModel, Sitecore.Mvc’).
or
Exception: System.Web.HttpCompileException
Message: c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\4f078900\f158f9a6\App_Web_weblayout.cshtml.b31435e0.agxyl06t.0.cs(44): error CS0246: The type or namespace name ‘WebViewPage’ could not be found (are you missing a using directive or an assembly reference?)
… check that you’ve not delete the /Views/Web.config file. Again.
I keep causing this when I clear out my Views folder of old, obsolete, or test views.
This is a bit of an aide-memoire, based on https://blogs.msdn.microsoft.com/benjaminperkins/2017/11/15/how-to-create-a-self-signed-san-certificate-wildcard-certificate-vs-san/
The short form is, you can do this in PowerShell:
New-SelfSignedCertificate -CertStoreLocation Cert:\LocalMachine\My -DnsName "example.local" -FriendlyName "example.local" -NotAfter $([datetime]::now.AddYears(5))
Next, we want to trust this certificate. We’ll need to export it.
Now import it into the “Trusted Root Certification Authorities” that you can see in Certificate Manager
That should be it completed.
