Title: Problem when previewing PDF
Last modified: January 5, 2021

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# Problem when previewing PDF

 *  Resolved [jonasweltklasse](https://wordpress.org/support/users/jonasweltklasse/)
 * (@jonasweltklasse)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/problem-when-previewing-pdf/)
 * Hello,
 * I downloaded the plugin and at first glance everything seems to be working great,
   however i am experiencing some inconsistencies when trying to preview PDF-files.
 * Sometimes the console shows a bunch of 404’s along with the message “elfinder
   debug: [error] [njt-fs-file-manager] Unable to connect to backend.<br>Backend
   not found.<br>HTTP error 404”. Other times the photopea editor opens, but doesn’t
   load the file.
 * Console shows:
    pp.js:10964 Service worker active pp.js:7249 Extra parameter 
   Spcn pp.js:7642 SyntaxError: Unexpected token (6:0) at a.raise (ext.js:5620) 
   at a.unexpected (ext.js:5635) at a.parseExprAtom (ext.js:5595) at a.parseExprSubscripts(
   ext.js:5591) at a.parseMaybeUnary (ext.js:5590) at a.parseExprOps (ext.js:5588)
   at a.parseMaybeConditional (ext.js:5587) at a.parseMaybeAssign (ext.js:5586) 
   at a.parseExpression (ext.js:5585) at a.parseStatement (ext.js:5644)
 * Any help would be appreciated.
 * Many thanks
    Jonas

Viewing 1 replies (of 1 total)

 *  Plugin Author [Ninja Team](https://wordpress.org/support/users/ninjateam/)
 * (@ninjateam)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/problem-when-previewing-pdf/#post-13870933)
 * Hi [@jonasweltklasse](https://wordpress.org/support/users/jonasweltklasse/) ,
 * We checked but we do not see the issue, so we guess something might go wrong 
   on your site. Could you send us a message here [https://www.facebook.com/ninjateam.org/](https://www.facebook.com/ninjateam.org/)
   so we can schedule a teamview check for you?
 * Best regards,
    Kelly

Viewing 1 replies (of 1 total)

The topic ‘Problem when previewing PDF’ is closed to new replies.

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 * [File Manager Pro - Filester](https://wordpress.org/plugins/filester/)
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 * 1 reply
 * 2 participants
 * Last reply from: [Ninja Team](https://wordpress.org/support/users/ninjateam/)
 * Last activity: [5 years, 5 months ago](https://wordpress.org/support/topic/problem-when-previewing-pdf/#post-13870933)
 * Status: resolved