Cert/Key on DOS format file are not processed

[manuel-miranda]

Describe the bug

When a certificate or Key files are uploaded using DOS format file, the SAML configuration is not able to process it, when clicking on Download SP Metadata it got redirected to a blank page.

Steps to reproduce the behavior:

1. Create certs using DOS format file (usually windows or using vim change it by typing :set ff=dos)
2. Add New SAML Configuration, fill the required fields and upload the cert/key files created on step 1
3. Save the Configuration.
4. Click on Download SP Metadata on the Config created on step 2

Expected behavior

Get the SP Metadata instead of blank page.

Screenshots

N/A

Desktop (please complete the following information):

• OS: Any
• Browser: Any
• Version: Any

Workaround

Create the files as unix format or change them before upload for example using vim by typing :set ff=unix