| PASS "none" top-level: navigating a frame to "none" should succeed | |
| PASS "none" top-level: navigating a frame from "require-corp" to "none" should succeed | |
| PASS "none" top-level: navigating a frame back from "require-corp" should succeed | |
| PASS "require-corp" top-level noopener popup: navigating to "none" should succeed | |