[xep-support] Abort when Image File not found?

[Thomas Schraitle]

Hi,

when XEP tries to find an image file and it can't, it proceeds in the
rendering process and shows the 404 image in the output format. 
I would like to stop XEP in case an image cannot be found.

How can I do this?


-- 
Gruß/Regards,
    Thomas Schraitle

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