Displaying of the "Save as" dialog takes extremely long when
downloading a large file
When downloading a large file from the Internet via F-Secure Internet
Gatekeeper for Linux (FSIGK for Linux), it takes exceptionally long before the
Save as dialog is displayed in the web browser.
When you download a large file from the Internet via FSIGK for Linux,
it takes extremely long - up to several minutes - before the Save as dialog is
displayed in the web browser.
The reason for this is that the file is not
actually downloaded by the client itself but by FSIGK for Linux. To be able to
scan the file, it needs to be downloaded entirely into the scanning proxy. Once
the file is downloaded, only then it is sent to the client using the web
The browser, on the other hand, will show the Save as dialog only
after having received a certain amount of bytes from the gatekeeper. Both
Internet Explorer and Mozilla Firefox browsers need approximately 300 bytes
before they can display the Save as dialog.
As this is actually not an issue, you can only inform the users by
explaining to them how the Save as dialog works and why it can take some time
before it is displayed when FSIGK for Linux is involved in the scanning.
Alternatively, you can enable data trickling in FSIGK for Linux. This
simply means that FSIGK for Linux sends a specific number (YYY) of bytes every
XXX seconds to the web browser. To do this: