Hi. Whenever I use an `Upload` it gives as excepti...

# kvision

[Philipp Smorygo [JB]]

Hi. Whenever I use an Upload it gives as exception (on 5.1.1)

main.bundle.js:2319 Uncaught TypeError: Cannot read properties of null (reading 'src')
    at getLoadingUrl (fileinput.js?9888:49)
    at Object.eval (fileinput.js?9888:58)
    at eval (fileinput.js?9888:14)
    at eval (fileinput.js?9888:20)

The object is initialized as following:

uploadControl = upload("/kv/upload") {
    allowedFileTypes = setOf("image")
    showPreview = false
}

Am I doing something wrong?