htaccess Rewrite Help - Failed to load resource: URI Too Long

I have a conflict between two plugins on my website -

a) iTheme Security - An option prevents long string URLs (this is good)
b) OIO Publisher - Uses a long URL strings to load the ads (this is bad)

The security plugin is blocking this specific script. Can I create a rewrite for a specific file that will allow it to load?

The OIO Plugin has a tool for creating rewrites, but it doesn't seem to shorten it enough. It provided the following code:

## OIOpublisher Rewrite
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^adserver/(.+)$ wp-content/plugins/oiopub-direct/$1 [L]

This shortened the code from

From:
/wp-content/plugins/oiopub-direct/js.php#type=banner&align=center&zone=1

To:
/adserver/js.php#type=banner&align=center&zone=1

Initially, the ads loaded once. Now, they are being blocked again. Is there a better rewrite or something else you think may be blocking the ads?

Thanks,
Chris