We're having difficulties on our web app that one of our staff, who has Web Clipper installed, can't access it and causing our page execution to grind to a halt. Note: this deals with iframe sandboxes, postMessage with transferables, hence null origins
[Error] SecurityError: The operation is insecure.
getItem (topee-content.js:3006)
(anonymous function) (topee-content.js:3036)
__webpack_require__ (topee-content.js:20)
(anonymous function) (topee-content.js:105)
(anonymous function) (topee-content.js:230)
__webpack_require__ (topee-content.js:20)
(anonymous function) (topee-content.js:84)
Global Code (topee-content.js:85)
[Error] TypeError: null is not an object (evaluating 'scriptTagContainer.lastChild.src')
(anonymous function) (commons.js:61077)
../node_modules/@evernote/skitch-core/dist/skitch.js (commons.js:61079)
__webpack_require__ (content.js:81)
./content/contentPreview/utils/SkitchTools.js (commons.js:155159)
__webpack_require__ (content.js:81)
./content/contentPreview/previewers/ScreenshotPreviewer.js (commons.js:154034)
__webpack_require__ (content.js:81)
./content/contentPreview/ContentPreview.js (commons.js:153459)
__webpack_require__ (content.js:81)
./content/Content.js (commons.js:151257)
__webpack_require__ (content.js:81)
checkDeferredModules (content.js:47)
(anonymous function) (content.js:154)
(anonymous function) (content.js:155)
