var golang.org/x/net/trace.pageTmplOnce

2 uses

	golang.org/x/net/trace (current package)
		trace.go#L957: var pageTmplOnce sync.Once
		trace.go#L960: 	pageTmplOnce.Do(func() {

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)