Bug report: File size shown in download list when save as is incorrect

[tanquang]

To Reproduce

1. Open any file in a new tab. For example: https://filters.adtidy.org/extension/chr...imized.txt
   
2. Right click → "Save as" / or use shortcut Ctrl + S.
   
3. Open the download list and you will see the newly saved file showing a size of 1 B.
   

Video