blank line at start of yaml not valid

[kgtw]

Description

What happened:

if the start of any manifest contains a blank line, teleport cannot parse the file

error: creating resources of type "" is not supported

Example:

---
kind: role
version: 3
....

note the empty line, on line 1

What you expected to happen:

File to be parsed

How to reproduce it (as minimally and precisely as possible):

Have an empty line at the start of the file

Environment

• Teleport version (use teleport version): Teleport Enterprise v4.3.7git:v4.3.7-0-g3687d398b go1.13.2

• Tsh version (use tsh version): Teleport v4.3.5 git:v4.3.5-0-g122349e78 go1.13.2

• OS (e.g. from /etc/os-release):

• Where are you running Teleport? (e.g. AWS, GCP, Dedicated Hardware):

Browser environment

• Browser Version (for UI-related issues):
• Install tools:
• Others:

Relevant Debug Logs If Applicable

• tsh --debug
• teleport --debug