Reproducible on new tab page.
[9820:9820:0930/123147:ERROR:CONSOLE(600)] "Protocol Error: Invalid type of argument 'securityOrigin' for method 'IndexedDB.requestDatabaseNames' call. It must be 'string' but it is 'undefined'.", source: chrome-devtools://devtools/bundled/sdk/InspectorBackend.js (600)
[9820:9820:0930/123147:ERROR:CONSOLE(600)] "Protocol Error: Invalid type of argument 'securityOrigin' for method 'CacheStorage.requestCacheNames' call. It must be 'string' but it is 'undefined'.", source: chrome-devtools://devtools/bundled/sdk/InspectorBackend.js (600)
[9820:9820:0930/123147:ERROR:CONSOLE(606)] "Uncaught (in promise) Error: Protocol Error: Invalid type of argument 'securityOrigin' for method 'IndexedDB.requestDatabaseNames' call. It must be 'string' but it is 'undefined'.", source: chrome-devtools://devtools/bundled/sdk/InspectorBackend.js (606)
[9820:9820:0930/123147:ERROR:CONSOLE(606)] "Uncaught (in promise) Error: Protocol Error: Invalid type of argument 'securityOrigin' for method 'CacheStorage.requestCacheNames' call. It must be 'string' but it is 'undefined'.", source: chrome-devtools://devtools/bundled/sdk/InspectorBackend.js (606)
Comment 1 by eostroukhov@chromium.org
, Dec 1 2017