I see this error in the JS console when loading https://luci-logdog.appspot.com/v/?s=infra%2Fswarm%2Fchromium-swarm.appspot.com%2F34a0519fbb7f5a11%2F%2B%2Fsteps%2Fgo_tests%2F0%2Fstdout

No error is shown on the page, just "[.../+/steps/go_tests/0/stdout]	(Fetching)"

The JS console says:

Loading log streams: Array[1]0: LogDogStreampath: "swarm/chromium-swarm.appspot.com/34a0519fbb7f5a11/+/steps/go_tests/0/stdout"project: "infra"__proto__: Objectlength: 1__proto__: Array[0]
elements.html:15437 Error loading buffer for infra/swarm/chromium-swarm.appspot.com/34a0519fbb7f5a11/+/steps/go_tests/0/stdout ( _BufferedStream_currentFetch: Promise__proto__: Promise[[PromiseStatus]]: "rejected"[[PromiseValue]]: "Seconds string does not end in 's': undefined"_fetcher: LogDogFetcher_current: null_nextLogsPromise: nullbyteCount: nullclient: rpc-client#client.style-scope.logdog-stream-view$: Object__boundListeners: WeakMap__data__: Object__dom: Object__domApi: null__polymerGestures: null_aboveConfig: Object_clients: null_clientsReadied: true_config: Object_customStyle: null_debouncers: Object_handlers: Array[0]_nodes: Array[1]_ownStyleProperties: null_ownerShadyRoot: undefined_readied: true_scopeSelector: null_styleCache: null_styleProperties: nullaccessKey: ""accessToken: (...)assignedSlot: nullattributes: NamedNodeMapauto: (...)autoToken: truebaseURI: "https://luci-logdog.appspot.com/v/?s=infra%2Fswarm%2Fchromium-swarm.appspot.com%2F34a0519fbb7f5a11%2F%2B%2Fsteps%2Fgo_tests%2F0%2Fstdout"childElementCount: 1childNodes: NodeList[3]children: HTMLCollection[1]classList: DOMTokenList[2]className: "style-scope logdog-stream-view"clientHeight: 0clientLeft: 0clientTop: 0clientWidth: 0contentEditable: "inherit"customStyle: ObjectdataHost: logdog-stream-view#view.style-scope.logdog-viewdataset: DOMStringMapdebounceDuration: (...)dir: ""domHost: (...)draggable: falsefirstChild: textfirstElementChild: google-signin-aware#aware.style-scope.rpc-clienthidden: falsehost: (...)id: "client"innerHTML: "↵    <google-signin-aware id="aware" class="style-scope rpc-client"></google-signin-aware>↵  "innerText: ""insecure: nullisAttached: trueisConnected: trueisContentEditable: falselang: ""lastCall: (...)lastChild: textlastCode: (...)lastElementChild: google-signin-aware#aware.style-scope.rpc-clientlastError: (...)lastResponse: (...)loading: (...)localName: "rpc-client"method: (...)namespaceURI: "http://www.w3.org/1999/xhtml"nextElementSibling: div.main-view.style-scope.logdog-stream-viewnextSibling: textnodeName: "RPC-CLIENT"nodeType: 1nodeValue: nulloffsetHeight: 0offsetLeft: 0offsetParent: bodyoffsetTop: 45offsetWidth: 0onabort: nullonauxclick: nullonbeforecopy: nullonbeforecut: nullonbeforepaste: nullonblur: nulloncancel: nulloncanplay: nulloncanplaythrough: nullonchange: nullonclick: nullonclose: nulloncontextmenu: nulloncopy: nulloncuechange: nulloncut: nullondblclick: nullondrag: nullondragend: nullondragenter: nullondragleave: nullondragover: nullondragstart: nullondrop: nullondurationchange: nullonemptied: nullonended: nullonerror: nullonfocus: nullongotpointercapture: nulloninput: nulloninvalid: nullonkeydown: nullonkeypress: nullonkeyup: nullonload: nullonloadeddata: nullonloadedmetadata: nullonloadstart: nullonlostpointercapture: nullonmousedown: nullonmouseenter: nullonmouseleave: nullonmousemove: nullonmouseout: nullonmouseover: nullonmouseup: nullonmousewheel: nullonpaste: nullonpause: nullonplay: nullonplaying: nullonpointercancel: nullonpointerdown: nullonpointerenter: nullonpointerleave: nullonpointermove: nullonpointerout: nullonpointerover: nullonpointerup: nullonprogress: nullonratechange: nullonreset: nullonresize: nullonscroll: nullonsearch: nullonseeked: nullonseeking: nullonselect: nullonselectstart: nullonshow: nullonstalled: nullonsubmit: nullonsuspend: nullontimeupdate: nullontoggle: nullonvolumechange: nullonwaiting: nullonwebkitfullscreenchange: nullonwebkitfullscreenerror: nullonwheel: nullouterHTML: "<rpc-client id="client" auto-token="" class="style-scope logdog-stream-view">↵    <google-signin-aware id="aware" class="style-scope rpc-client"></google-signin-aware>↵  </rpc-client>"outerText: ""ownerDocument: documentparentElement: logdog-stream-view#view.style-scope.logdog-viewparentNode: logdog-stream-view#view.style-scope.logdog-viewprefix: nullpreviousElementSibling: google-signin-aware#aware.style-scope.logdog-stream-viewpreviousSibling: textrequest: (...)root: document-fragmentscrollHeight: 0scrollLeft: 0scrollTop: 0scrollWidth: 0service: (...)shadowRoot: nullshadyRoot: document-fragmentslot: ""spellcheck: truestyle: CSSStyleDeclarationtabIndex: -1tagName: "RPC-CLIENT"textContent: "↵    ↵  "timeout: 0title: ""translate: trueverbose: falsewebkitdropzone: ""__proto__: HTMLElementdesc: nullfinished: falselogCount: nullnextIndex: 0sleepTimeSecs: 5state: nullstream: LogDogStream__proto__: Object_lastFetchIndex: null_oneOfMany: false_statusCallback: ()auth: falseerror: "Seconds string does not end in 's': undefined"finished: falsestream: LogDogStreampath: "swarm/chromium-swarm.appspot.com/34a0519fbb7f5a11/+/steps/go_tests/0/stdout"project: "infra"__proto__: Objectwaiting: false__proto__: Object ):  Seconds string does not end in 's': undefined
(anonymous) @ elements.html:15437
elements.html:15295 All streams have been exhausted.

The response from https://luci-logdog.appspot.com/prpc/logdog.Logs/Get is long so I've pasted it here: https://paste.googleplex.com/5791462163742720