What steps will reproduce the problem?
(1) Visit https://luci-logdog.appspot.com/v/?s=chrome%2Fbb%2Ftryserver.chromium.perf%2Fmac_10_11_perf_bisect%2F1482%2F%2B%2F%2A%2A%2Fstdout&s=chrome%2Fbb%2Ftryserver.chromium.perf%2Fmac_10_11_perf_bisect%2F1482%2F%2B%2F%2A%2A%2Fstderr
(2) Look in the console.

What is the expected result?
Logs!

What happens instead?
No logs, and this:

Failed to load log streams: TypeError: Cannot read property 'pushLogEntries' of undefined
    at appendBlock (elements.html:16709)
    at Model.<anonymous> (elements.html:16726)
    at Generator.next (<anonymous>)
    at elements.html:15360
    at Promise (<anonymous>)
    at __awaiter (elements.html:15356)
    at Model.renderLogs (elements.html:16701)
    at Model.<anonymous> (elements.html:16685)
    at Generator.next (<anonymous>)
    at elements.html:15360