Extension Error: PROTOCOL_TIMEOUT Method: Storage.clearDataForOrigin

[allania7med11]

Lighthouse Version: 3.3.0.4000
Lighthouse Commit: 40e1120
Chrome Version: 70.0.3538.102
Initial URL: https://effectivewebapp.com/Tutorials/TrussStructure
Error Message: PROTOCOL_TIMEOUT Method: Storage.clearDataForOrigin
Stack Trace:

LHError: PROTOCOL_TIMEOUT Method: Storage.clearDataForOrigin
    at _ (chrome-extension://blipmdconlkpinefehnmjammfjpmpbjk/scripts/lighthouse-ext-bundle.js:18402:11)

[patrickhulce]

duplicate #6512