Attempted fix for https://github.com/spring-projects/spring-boot/issues/26811

The livereload functionality should not be relying on specific case sensitivity of header fields to work. HTTP header field names are case insensitive.

Disclaimer: I don't use this project, I just made these changes directly in GitHub because it seems like a simple fix, from a report we got on https://github.com/caddyserver/caddy.

Comment From: pivotal-cla

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Comment From: pivotal-cla

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Comment From: philwebb

Thanks very much for the fix @francislavoie! This has been merged to 2.4.x, 2.5.x and main.