Title: Sudden Error on loading?
Last modified: March 16, 2020

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# Sudden Error on loading?

 *  Resolved [LesTexas60](https://wordpress.org/support/users/lestexas60/)
 * (@lestexas60)
 * [6 years, 2 months ago](https://wordpress.org/support/topic/sudden-error-on-loading/)
 * I added a PDF earlier today and it was working great. Tonight when I go to the
   page is shows the PDF with a red bar that says “An error occurred while loading
   the PDF”
    More Info: PDF.js v1.4.20 (build: b15f335) Message: file origin does
   not match viewer’s
 * Any ideas

Viewing 15 replies - 1 through 15 (of 18 total)

1 [2](https://wordpress.org/support/topic/sudden-error-on-loading/page/2/?output_format=md)
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 *  Plugin Author [Abu Hayat](https://wordpress.org/support/users/abuhayat/)
 * (@abuhayat)
 * [6 years, 2 months ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12560434)
 * Internet Download manager (IDM) Apps Causing this type issue. Please test with
   a pc where Internet Download manager (IDM) is not installed.
 *  [javierpernettr](https://wordpress.org/support/users/javierpernettr/)
 * (@javierpernettr)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12704058)
 * I dont have internet download manager, but still with the error 403 not allowed
 *  Plugin Author [Abu Hayat](https://wordpress.org/support/users/abuhayat/)
 * (@abuhayat)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12710073)
 * [@javierpernettr](https://wordpress.org/support/users/javierpernettr/)
    please
   check ssl issue. can you please sent me a link of the page ?
 *  [javierpernettr](https://wordpress.org/support/users/javierpernettr/)
 * (@javierpernettr)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12710876)
 * Well, i think you should also add the note that the plugin “all in one wordpress
   security” have some issues with your plugin, it seems to block the functionability
   to show the pdfs, it was that plugin that blocked all the pdfs in the website,
   you also should check if some other security plugins have imcompatibility problems
   with your plugin.
 *  Plugin Author [Abu Hayat](https://wordpress.org/support/users/abuhayat/)
 * (@abuhayat)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12713362)
 * I am sorry to hear that, Have you found any solution ? Please let me know so 
   that i can write in the plugin description area.
    Thanks
 *  [javierpernettr](https://wordpress.org/support/users/javierpernettr/)
 * (@javierpernettr)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12715444)
 * It seems that was something about htaccess options and the firewall that create
   the AIOWPS, THAT WAS causing the error 403 with your plugin
 *  [scottydt](https://wordpress.org/support/users/scottydt/)
 * (@scottydt)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12719836)
 * Hey Guys!
 * Sorry, it’s not the AIO-Plugin. If you already have the 403-Error, change the
   following line in the pdf-poster-php:
 * from
 *  $viewer_base_url= plugins_url().”/pdf-poster/pdfjs/web/viewer.php”; $final_url
   = $viewer_base_url.”?file=”.$file_name.”&download=”.$pdf_download.”&print=”.$
   print.”&openfile=”.$openfile;
 * to
 *  $viewer_base_url= plugins_url().”/pdf-poster/pdfjs/web/viewer.php”; $final_url
   = $viewer_base_url.”?file=”.urlencode($file_name).”&download=”.$pdf_download.”&
   print=”.$print.”&openfile=”.$openfile;
 * I also had the error on previous versions and this line fixed it.
 * This bug in the plugin-code was already fixed here by [@joneiseman](https://wordpress.org/support/users/joneiseman/):
   [Error in Plugin Code](https://wordpress.org/support/topic/error-in-plugin-code/)
    -  This reply was modified 6 years, 1 month ago by [scottydt](https://wordpress.org/support/users/scottydt/).
    -  This reply was modified 6 years, 1 month ago by [scottydt](https://wordpress.org/support/users/scottydt/).
 *  Plugin Author [Abu Hayat](https://wordpress.org/support/users/abuhayat/)
 * (@abuhayat)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12721680)
 * I have updated the plugin code.
    Thanks for the suggestion.
 *  [cupalovaveronika](https://wordpress.org/support/users/cupalovaveronika/)
 * (@cupalovaveronika)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12726725)
 * The same problem, the bug remains after updating. I tried disabled all other 
   plugins but no solution 🙁 I wanted buy PRO version but if it do not work… 🙁
 *  Plugin Author [Abu Hayat](https://wordpress.org/support/users/abuhayat/)
 * (@abuhayat)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12726851)
 * Hello,
    Is internet download manager (IDM) application running in your pc ? Please
   upgrade to pro, and test. If not work, contact plugin support with your licence
   key.
 *  Thread Starter [LesTexas60](https://wordpress.org/support/users/lestexas60/)
 * (@lestexas60)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12727053)
 * This is just to be removed from the notification
 *  Plugin Author [Abu Hayat](https://wordpress.org/support/users/abuhayat/)
 * (@abuhayat)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12727323)
 * [@lestexas60](https://wordpress.org/support/users/lestexas60/) sorry, I am not
   clear.
 *  [cupalovaveronika](https://wordpress.org/support/users/cupalovaveronika/)
 * (@cupalovaveronika)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12729705)
 * No IDM. If it is not working on my computer, how can I be sure it will show PDFs
   to my clients?
 *  Plugin Author [Abu Hayat](https://wordpress.org/support/users/abuhayat/)
 * (@abuhayat)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12729712)
 * [@cupalovaveronika](https://wordpress.org/support/users/cupalovaveronika/)
    Hello
   Please follow this [link ](https://form.jotform.me/93110988048462) And submit
   more details, so that we can fix quickly. Thanks
 *  [javierpernettr](https://wordpress.org/support/users/javierpernettr/)
 * (@javierpernettr)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/#post-12738354)
 * It seems that is the same error for my case, and i have a deadline, this is driving
   me crazy, when are you going to solve this please?

Viewing 15 replies - 1 through 15 (of 18 total)

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The topic ‘Sudden Error on loading?’ is closed to new replies.

 * ![](https://ps.w.org/pdf-poster/assets/icon-128x128.png?rev=3474162)
 * [PDF Poster – Display PDF Files with Custom Viewer](https://wordpress.org/plugins/pdf-poster/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/pdf-poster/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/pdf-poster/)
 * [Active Topics](https://wordpress.org/support/plugin/pdf-poster/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/pdf-poster/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/pdf-poster/reviews/)

 * 18 replies
 * 5 participants
 * Last reply from: [Abu Hayat](https://wordpress.org/support/users/abuhayat/)
 * Last activity: [6 years, 1 month ago](https://wordpress.org/support/topic/sudden-error-on-loading/page/2/#post-12739980)
 * Status: resolved