pgAdmin 4.3 Failure to Export as CSV on Mac

Hi all - I've been having a problem with the export utility running pgAdmin
v4.3 on a Macbook Pro using a current version of Chrome: Version
72.0.3626.121. I'm running the same version on a Linux machine and a
Windows machine which appear to behave properly.

Queries will execute fine, and populate the results table. When I click on
the "Download as CSV" button (F8), an icon will spin briefly, indicating a
save, but nothing happens and no file is saved to my computer. At the
moment, I am not able to export any CSV file no matter what query I execute
or which database I am connected to.

I've experienced this issue on my Macbook with prior releases as well, but
the issue has been sporadic. With the current release, it has always
failed despite machine and server restarts. There are no messages in the
javascript console either.

Any help would be appreciated - thanks,
- Bob