Fix errors from tests

Signed-off-by: Will Hegedus <[email protected]>

CHANGELOG.md

@@ -13,7 +13,8 @@ We use *breaking :warning:* to mark changes that are not backward compatible (re
 ### Added
 
 ### Fixed
-[#4471](https://github.com/thanos-io/thanos/pull/4471) **breaking:** Query/Rule/Compact/Store: Serve `/debug/*`, `/-/ready`, `/-/healthy`, and `/metrics` routes under the prefix from `--web.route-prefix`, if set. 
+
+[#4471](https://github.com/thanos-io/thanos/pull/4471) **breaking:** Query/Rule/Compact/Store: Serve `/debug/*`, `/-/ready`, `/-/healthy`, and `/metrics` routes under the prefix from `--web.route-prefix`, if set.
 
 ### Changed
 

test/e2e/e2ethanos/services.go

@@ -259,6 +259,11 @@ func (q *QuerierBuilder) Build() (*Service, error) {
 		args = append(args, "--tracing.config="+q.tracingConfig)
 	}
 
+	// If routePrefix isn't assigned, it defaults to the value of externalPrefix
+	if q.routePrefix == "" {
+		q.routePrefix = q.externalPrefix
+	}
+
 	querier := NewService(
 		fmt.Sprintf("querier-%v", q.name),
 		DefaultImage(),