PDF Viewer not working after updating to 127 version

[smayoral]

Hi,
we have a application using cef_binary_121.3.2+gce31761+chromium-121.0.6167.75_windows32
Our Fax applications displays PDFs. It generates a link like:

https://platform.domain.com/domain.com/ ... 9&id=12345

and the Fax is displayed in an IFrame. Everything works.

We have now updated to cef_binary_127.3.4+ge9e2e14+chromium-127.0.6533.100_windows32 and after loading this URL, we get requests for many files other files:

chrome-extension://mhjfbmdgcfjbbpaeojofohoefgiehjai/index.html
chrome://resources/css/text_defaults_md.css
chrome-extension://mhjfbmdgcfjbbpaeojofohoefgiehjai/pdf_viewer_wrapper.js
chrome://resources/lit/v3_0/lit.rollup.js
chrome://resources/js/load_time_data.js
chrome://resources/polymer/v3_0/polymer/polymer_bundled.min.js
...

I can allow these files in OnBeforeResourceLoad but I would like to know if this implies any risk, if this is ok and why the difference.

Thanks in advance,
Sergio

[magreenblatt]

I can allow these files in OnBeforeResourceLoad but I would like to know if this implies any risk, if this is ok and why the difference.

Allowing chrome schemes is fine. The Chromium implementation changes over time.