Hello @sleepyboy170026bzpk, welcome to Thunkable! 
The only way to pass the image into the web viewer is a URL, so you will need to upload the image to Cloudinary first.
Here are some examples: https://community.thunkable.com/t/upload-images-to-cloudinary-using-web-api-only/1701875/8
https://community.thunkable.com/t/solved-how-do-i-base64-encode-an-image/1858457
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