Hi @JuliusPIV ,
Your guess is correct. In your website, it redirects to an insecure HTTP connection to implement the download function, resulting in a mixed content download, which ultimately leads to this issue.
In order to solve this problem, you need to use the matching policy: InsecureContentAllowedForUrls. It is used to create a list of URL patterns to specify sites that can display or download insecure mixed content (HTTP content on HTTPS sites). Located under this path: Administrative Templates/Microsoft Edge/Content settings
.
For more details, please refer to this docment: Learn about Microsoft Edge and mixed content downloads.
Hope this can help you.
Best regards,
Xudong Peng
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