@mrezair You need to use proxy action every time before page load.
Here is tutorial and video, which explains it in more details
Yes its normal thing just like with any other browser >
Or simply open your local html file in any browser and copy addres
from address bar to BAS Load command.
Create a Resource of LinesFromFile. In the recording studio, use Resource Location to get the file path (keep reuse checked on the resource).
Next, use File System's 'Read File' using the Path from Resource Location.
Load it where ever you need.