Recursive loops when using base.GetUrl(...) in custom url providers

Questions
1

I am sure this has been addressed, but I cannot find the answers. I have a custom URL provider that inherits from the DefaultUrlProvider. I’m on v16.1.1.

Whenever I use the base.GetUrl(…) method, as in the docs, I always get an “unhandled exception,” and the site crashes.

Does anyone have suggestions or a fix for this?

2

Not entirely sure if this addresses your issue as I don’t see the code you have, but you could see if the below helps

public class MyCustomUrlProvider : DefaultUrlProvider
{
public MyCustomUrlProvider(IRequestAccessor requestAccessor, IOptions options)
: base(requestAccessor, options)
{
}

public override UrlInfo? GetUrl(IPublishedContent content, UrlMode mode, string? culture, Uri current)
{
    if (content.ContentType.Alias != "myCustomType")
    {
        // Don't call base.GetUrl — just return null
        return null;
    }

    // Your custom logic
    var customUrl = $"/custom/{content.Name.ToLowerInvariant()}";
    return new UrlInfo(customUrl, true, culture);
}

}`

If not, might be worth posting your code.

3

@EricEngle-design did you ever figure anything out with this?

I’m seeing the same problem when trying override the DefaultUrlProvider, like shown at Outbound request pipeline | Umbraco CMS