Safari Exception: TypeError: undefined is not an object (evaluating 'this.tabHandle.page.dispatchMessage')

[leakymemory]

Stack trace:

sendMessage@safari-extension://com.microsoft.onenote.clipper-UBF8T346G9/36705823/safariExtension.js:31:17727
postMessage@safari-extension://com.microsoft.onenote.clipper-UBF8T346G9/36705823/safariExtension.js:30:5032
sendInitializationMessage@safari-extension://com.microsoft.onenote.clipper-UBF8T346G9/36705823/safariExtension.js:30:4673
e@safari-extension://com.microsoft.onenote.clipper-UBF8T346G9/36705823/safariExtension.js:30:1817
e@safari-extension://com.microsoft.onenote.clipper-UBF8T346G9/36705823/safariExtension.js:30:31216
t@safari-extension://com.microsoft.onenote.clipper-UBF8T346G9/36705823/safariExtension.js:31:18948
createWorker@safari-extension://com.microsoft.onenote.clipper-UBF8T346G9/36705823/safariExtension.js:31:15143
getOrCreateWorkerForTab@safari-extension://com.microsoft.onenote.clipper-UBF8T346G9/36705823/safariExtension.js:30:26065
invokeClipperInCurrentTab@safari-extension://com.microsoft.onenote.clipper-UBF8T346G9/36705823/safariExtension.js:31:15768
safari-extension://com.microsoft.onenote.clipper-UBF8T346G9/36705823/safariExtension.js:31:14139