override permalink in a .js data file

[btrem]

Is it possible to override permalinks in an *.11tydata.js file?

I have a directory with reads/bookmarks, where the front matter includes the url of an article external to my site. I'd like to use fetch to retrieve the url and possibly get the title of the page, but I'd rather it not create any page if the url results in an error, e.g., 404, 410, 501, etc. The permalink is set in an upstream 11dataty json file.

My posts.11tydata.json file:

{ "permalink": "/{{ page.fileSlug }}" }

Inside the posts directory is a subdirectory reads with reads.11tydata.js;

module.exports = {
    eleventyComputed: {
        permalink: (data) => {
            return fetch(data.url)
                .then((response) => {
                    if (response.status === 200) {
                        // return permalink from data cascade
                        return data.permalink;
                    }
                    else {
                        // return false so no page is created
                        return false;
                    }
                })
                .catch((error) => false); // return false for exceptions, too
        }
    }
}

With this setup, the page is created on each build, regardless of the status returned by fetch.

[btrem]

Hmm. I just created a bare minimum 1ty project to demo the problem, and it works as I want it to. So the problem is somewhere in my project. :-/