I need to add a feature on my app that allows users to save, as an image, in their Photo Documents on the device, a portion of the App.

I'm using Nuxt.js and the content is just inside a Dialog, simple like this:

<v-card ref="print" outlined class="certificate">
  <v-img :src="photo.url"></v-img>
  <v-card-text>
    {{ photo.title }}
  </v-card-text>
</v-card>

The image src is on external storage, not in my assets, ofc...

The code to generate the file to be saved is the following:

      const el = this.$refs.print
      const options = {
        type: 'dataURL',
        useCors: true,
        scale: 2,
        logging: false,
      }
      try {
        const canvas = await this.$html2canvas(el, options)
        await Filesystem.writeFile({
          path: `certificate-${this.photo.id}.jpeg`,
          data: canvas,
          directory: Directory.Documents,
        })
      } catch (error) {
        // ...
      }

It works, it gets the right portion of HTML and saves a Jpeg to my Documents, unfortunately, the images within are always total black...

Why??? How can I fix this?