[Libreoffice-bugs] [Bug 134870] New: Cannot display presentation with Fontwork in full screen, 0 byte slideshow.svg

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=134870

            Bug ID: 134870
           Summary: Cannot display presentation with Fontwork in full
                    screen, 0 byte slideshow.svg
           Product: LibreOffice Online
           Version: unspecified
          Hardware: All
               URL: https://github.com/nextcloud/richdocuments/issues/1084
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Impress
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: documentfoundation at cs-ware.de

Created attachment 163127
  --> https://bugs.documentfoundation.org/attachment.cgi?id=163127&action=edit
A ODP file containing a FontWork object

I have several presentations which cannot be displayed in full screen mode
(Firefox 78 reports an XML error on the generated slideshow.svg which has 0
bytes size) in Nextcloud Collobora Online. I experimented a bit and it seems to
boil down to Fotwork objects.

Steps to reproduce:
1. Upload an ODP presentation which contains a fontwork object (e.g., the
attached presentation)
2. Open it with Collabora (the fontwork object is visible here)
3. Click on Menu Slide and select Full Screen Presentation
4. See an error in Firefox, Firefox complains that the file has not valid XML
root element, indeed the slideshow.svg has a size of 0 bytes

I use Nextcloud 18.0.6 with the Collobora Online (richdocuments app) 3.7.3 and
collaboraoffice6.2 (6.2.10.18-18) on the server side (Debian 9).

On the syslog I see the following error:
Jul 16 17:02:23 srv2 loolwsd[1250]: wsd-01250-02852 2020-07-16 15:02:23.198842
[ websrv_poll ] ERR  Download file
[/opt/lool/child-roots/r1BRWJSB8svGjwMh/user/docs/EqkZpwJ75QfUO1of5dF5NaNfH1jWNl3ncZNXCbUX3Oy7IzJJ45YWSqPJkY9HgjRy/slideshow.svg]
not found.| wsd/LOOLWSD.cpp:2934

Cross-ref: This issue was reported for the Nextcloud richdocuments app
(<https://github.com/nextcloud/richdocuments/issues/1084>) before, but I was
send here.

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