CD
Cloudflare Developers•2d ago
John Resig

Image transforms via Worker/Workflow not working

I'm encountering a strange issue where my image transformations aren't working at all. I have a pretty basic request, fetching an image from an external domain. I can confirm that the Cf-Resized header is null and the Content-Type header is un-changed (image/jpeg). 
    const image = await fetch(imageUrl, {
        cf: {
            image: {
                format: "webp",
            },
        },
    });

    console.log(
        "Image headers, post-transform",
        image.headers.get("Cf-Resized"),
        image.headers.get("Content-Type"),
    );
    const image = await fetch(imageUrl, {
        cf: {
            image: {
                format: "webp",
            },
        },
    });

    console.log(
        "Image headers, post-transform",
        image.headers.get("Cf-Resized"),
        image.headers.get("Content-Type"),
    );
I'm calling this from within a Workflow, in case that matters. I do have Image Transformation enabled for the zone in which the worker is running. I'm not running this on a worker.dev domain, this is in the expected zone (but on a sub-domain). I have confirmed that Image Transformations are working with another worker within the same zone, so the only thing difference is the use of a Workflow. Is there something that I'm missing here? Thanks!
1 Reply
John Resig
John ResigOP•2d ago
Got an answer over here. Turns out Workflows are run in the workers.dev zone, which means that they don't have access to the Images product, as that's limited to specific zones.

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