Error: <svg> attribute viewbox: Expected number, ...

I am using VueJS to create a single page app. I get the following console error (Chrome and Edge, haven’t tried other browsers):

Here’s my code: script section: mounted() { const anno = new Annotorious({ image: this.photo.id }) // Attach listeners to handle annotation events anno.on('createAnnotation', function(annotation) { console.log('Created!', annotation) })

template section: <img :src="photo.url" :id="photo.id" :alt="photo.title" />

I should mention that it does work, it’s just that I get that console error. It’s possible that the DOM hasn’t been fully rendered. Here’s the debug info: