Black Screen on preview PDF


From content page, for example /index.php/editor/objects/ObjectEditor/Edit/object_id/945
clicking on preview of the image generated during the loading of a PDF into Media representations, the result is the black screen (see attachments)

By the console browser (firefox) what i can see after the click is (please note: <url> is the domain and path of installation):

JQMIGRATE: jQuery.fn.load() is deprecated jquery-migrate-1.4.1.js:45:4
console.trace() jquery-migrate-1.4.1.js:47:5


showPanel http://<url>/assets/ca/ca.genericpanel.js:90 onclick http://<url>/index.php/editor/objects/ObjectEditor/Edit/object_id/945:1

XHR POST http://<url>/index.php/editor/objects/ObjectEditor/GetMediaOverlay/object_id/945/representation_id/1183
[HTTP/1.1 200 OK 742ms]
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user’s experience. For more help jquery.js:5:17960
XHR GET http://<url>/assets/mirador/mirador.js?_=1550831471461
[HTTP/1.1 200 OK 105ms]
XHR GET http://<url>/assets/mirador/locales/en/translation.json
[HTTP/1.1 200 OK 2ms]
XHR GET http://<url>/index.php/editor/objects/ObjectEditor/GetMediaData/identifier/representation%3A1183/context/GetMediaOverlay/object_id/945
[HTTP/1.1 200 OK 523ms]
XHR GET http://<url>/service.php/IIIF/representation:1183:1/info.json
[HTTP/1.1 200 OK 498ms]
uncaught exception: out of memory

Before the error uncaught exception: out of memory the browser show the warning bar (that disappears after a few seconds):
A web page is slowing down your browser. What would you like to do ?
(with buttons "Stop It" and "Wait")


Linux 4.9.0-8-amd64 #1 SMP Debian 4.9.130-2 (2018-10-27) x86_64 GNU/Linux
Server version: Apache/2.4.25 (Debian)
Server built: 2018-11-03T18:46:19
PHP 7.3.2-3+0~20190208150725.31+stretch~1.gbp0912bd (cli) (built: Feb 8 2019 15:07:25) ( NTS )

In attachments the settings of Providence.


User known



Affects versions