Download of .mar from Portal fails with undefined

Document ID : KB000098221
Last Modified Date : 28/05/2018
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When trying to download a .mar file for a Virtual Service displayed in the Portal, the download fails and shows the download as undefined.
The .mar was being downloaded from a remote server and this was taking a bit longer than what the refresh rate was (15 seconds). So the refresh interrupted the download.
Either untick the automatic refresh or set it to a longer refresh time.