Method SetLastModified

context/context.go:3436–3440

SetLastModified sets the "Last-Modified" based on the "modtime" input. If "modtime" is zero then it does nothing. It's mostly internally on core/router and context packages.

(modtime time.Time)

//
// It's mostly internally on core/router and context packages.
func (ctx *Context) SetLastModified(modtime time.Time) {
	if !IsZeroTime(modtime) {
		ctx.Header(LastModifiedHeaderKey, FormatTime(ctx, modtime.UTC())) // or modtime.UTC()?
	}
}

// ErrPreconditionFailed may be returned from `Context` methods
// that has to perform one or more client side preconditions before the actual check, e.g. `CheckIfModifiedSince`.