Embed pdf widget constant loading. Noticed it on our webpage that was working fine yesterday, logged into elfsight and the same is happening in there. Tried uploading the pdf into elfsight again, no change. Created new flipbook using a template and it is stuck on loading too. Seems to be an issue on the elfsight side. Please help - have an important even this evening that has a QR code linking to our webpage with a pdf catalogue on it.
Welcome to the Community, @user15432 
I see that my colleague Pavel reached out to you in a support ticket and the issue seems to be resolved.
If you have any questions left, don’t hesitate to ask them. We’ll be happy to advise 
Hi @Thorsten 
I’ve just checked your widget and couldn’t replicate this issue. Does the issue occur on your website only or in the widget editor too?
If on the website only, please send me a link to the page where your widget is installed.
In case the issue occurs in the editor too, please send me a video screencast showing the issue. I’ll be happy to check it for you 
Hi,
Unfortunately not.
Nothing happens except that a download starts.
Got it, thanks!
It seems to be a local issue. To troubleshoot it further, please let me consult with the devs.
I’ll get back to you once I have their response
Devs confirmed that this must be a local issue with your network. Could you please try to open your website using a different network. Also, please try to test it with and without VPN.
Additionally, please record the HAR file and send it us here. Here is how you can do this:
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Open the browser and go to the webpage where the issue occurs.
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Press
F12(orCtrl + Shift + Ion Windows /Cmd + Option + Ion Mac) to open Developer Tools. -
Click the Network tab at the top of the panel.
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Check “Preserve log” to ensure data is not lost when the page reloads.
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Click the Clear button (a blocked circle icon) to remove old logs.
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Reproduce the issue by reloading the page or clicking the problematic button.
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Click the Export HAR button (a downward-pointing arrow icon) or right-click anywhere in the log list and select “Save all as HAR with content”.
Hello Max,
thank you very much, but that’s too much for me. I hardly understand anything, because I have to translate all instructions from English to German and I can’t find the points in the developer tools.
I also can’t believe it’s a network problem. The problem would probably occur again and again.
I will delete the widget again and use another extension for displaying a PDF.
Thanks again.
See you again soon.
Best regards
Thorsten
Hello again,
I just looked again in another browser. The problem occurs with the Firefox browser. It works in Chrome and Edge. In Chrome with an (unsightly) black background (which you can certainly customize) and in Edge with a gray background.
The download does not start there either. Firefox only.
Best regards
Thorsten
Got it, thanks so much for sharing this info!
Most likely, the issue occurs because Firefox is conflicting with the Acrobat Reader. Here are the steps to troubleshoot the issue further (German version)
1. PDF-Handler in Firefox überprüfen
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Öffnen Sie Firefox.
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Geben Sie Folgendes in die Adressleiste ein:
about:preferences#general -
Suchen Sie den Bereich Anwendungen → PDF.
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Überprüfen Sie, ob folgende Option ausgewählt ist:
- In Adobe Acrobat öffnen (wenn Sie die externe Acrobat-Anwendung verwenden möchten), oder wählen Sie vorübergehend In Firefox öffnen, um den Fehler zu testen.
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Schließen Sie Firefox und starten Sie ihn erneut.
2. Integrierten PDF-Viewer von Firefox deaktivieren
Manchmal verursacht dieser Konflikte mit Adobe Acrobat.
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Öffnen Sie:
about:config -
Bestätigen Sie die Warnmeldung.
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Suchen Sie nach:
pdfjs.disabled -
Ändern Sie den Wert auf:
true
Starten Sie Firefox neu und versuchen Sie erneut, die PDF-Datei zu öffnen.
3. Überprüfen, ob Firefox den Start von Acrobat blockiert
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Geben Sie ein:
about:config -
Überprüfen Sie die folgende Einstellung:
network.protocol-handler.external-default -
Der Wert sollte sein:
true
4. Adobe-Acrobat-Einstellungen überprüfen
Öffnen Sie Adobe Acrobat:
Bearbeiten → Voreinstellungen → Internet
Überprüfen Sie Folgendes:
- Stellen Sie sicher, dass „PDF-Anzeige im Browser zulassen“ aktiviert ist (wenn Sie die Browser-Integration verwenden).
- Versuchen Sie, diese Option zu deaktivieren, starten Sie anschließend Acrobat und Firefox neu.
5. Schneller Test
Starten Sie Firefox im Fehlerbehebungsmodus: Menü → Hilfe → Fehlerbehebungsmodus
Wenn die PDF-Datei dort funktioniert, verursacht wahrscheinlich eine Erweiterung das Problem (häufig Werbeblocker, Antivirus-Erweiterungen oder Unternehmens-Erweiterungen).
Check it out and let me know if it helped 
Hello @Max
Thank you very much for your feedback and for providing the information in German. Great!
When I select Open PDF with Firefox, it works. But I need to set PDF to ‘Select every time’ because I need to open and save a lot of PDF files.
Unfortunately, the other settings didn’t help, and since I need to make sure that this problem doesn’t happen to other website visitors when they use the Firefox browser, I have to look for another extension for it.
But still, thank you very much for your efforts.
Best regards
Thorsten
Joomla Webdesign
I totally understand your decision, and I’m really sorry that the suggested steps didn’t help.
Before you move forward with another solution, we’d recommend trying one final troubleshooting step: updating or reinstalling both Adobe Acrobat and Firefox. Sometimes issues like this can be caused by a corrupted installation or outdated components.
Of course, I completely understand if you’d prefer to explore another option, and I truly appreciate you taking the time to test the suggested solutions and share your feedback with us.