[Bug] PDF downloads are corrupt/not accessible

[rmsgreig83]

Describe the bug

https://www.nationalphotonic.com/product/datasheet-asys-dbell-110/
When you download from this website through duckduckgo on android the pdf will not open, if you add them to dropbox it says they are corrupt/unsupported.
The downloads work on other browsers on android (chrome) and work on desktop on duckduckgo/chrome/firefox any ideas how to fix this?
many thanks

How to Reproduce

Go to '...'
Click on 'Download Now'
Open file
See error

Expected behavior

file should open as normal pdf

Environment

- DDG App Version: 5.154.0
- Device: Samsung Galaxy Tab A
- OS: Android

[dryaz]

Provided example tries to download

url: https://www.nationalphotonic.com/product/datasheet-asys-dbell-110/
contentDisposition: inline; filename="ASYS-dBELL-110-230321-Mod-230405-compressed-hzoaog.pdf";
mimeType: application/pdf

DDG downloads provided URL as requested but there is an HTML under this url.
Reason why it's impossible to open it as PDF 'cause it's not a PDF. It's also possible to rename downloaded file with *.html suffix and open it as valid web page.

Server responds with PDF to show but android webView doesn't have option to show PDF.

[flambers]

I've experienced dame issue with several pdfs. Then tried to download from another browser and they were noto corrupted.
Could you provvide a fix for Android? Thanks