Issue description

When exporting Dashboard or Chart reports to output formats like PDF, PNG etc. using PhantomJS rendering engine, report outputs are printed with no text. For example a table report rendered in Dashboard may look like this:

Solution

While PhantomJS is a headless browser which presumably has all required resources to render web pages, in practice it appears that it relies on web fonts to be already present on the system. One simple solution is to install a web browser like Mozilla Firefox onto the system (it is common to not have any web browsers on systems with no user interface).

Another potential solution is to explicitely install web fonts onlo the system, like for example discussed in this thread:

http://stackoverflow.com/questions/36365860/phantomjs-screenshots-not-showing-text

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Ref. case #01448344