[fullstory] can't access dead object TypeError

[gilroman]

We are observing through Sentry that the FullStory integration has started to throw a TypeError: can't access dead object error for some users.

The error is happening on Firefox Version: 89.0, Windows Version: 10

This is the breadcrumb:

TypeError: can't access dead object
  at contentWindowDesc.get(blob:https://[REDACTED])
  at 727/mo</e.prototype.tellAllFramesTo(/s/fs.js:3:154263)
  at 727/mo</e.prototype.shutdown(/s/fs.js:3:154141)
  at 727/hs</e.prototype.shutdown(/s/fs.js:3:196647)
  at 727/hs</e.prototype.splitPage/</<(/s/fs.js:3:197338)
  at a/</<(/s/fs.js:3:3614)
  at a/<(/s/fs.js:3:3719)
  at h/<(/s/fs.js:3:2643)
  at h(/s/fs.js:3:2388)
  at 727/hs</e.prototype.splitPage(/s/fs.js:3:197117)
  at splitPage(/s/fs.js:3:202919)
  at 727/Co</e.prototype.enqueueEvents(/s/fs.js:3:165233)
  at 727/Ni</e.prototype.processEvents(/s/fs.js:3:134713)
  at 727/Ni</e.prototype.startPipeline/</</<(/s/fs.js:3:131715)
  at 727/yn</t.prototype.start/<(/s/fs.js:3:42885)
  at e/this._wrappedTick<(/s/fs.js:3:41483)
  at ce/<(/s/fs.js:3:19725)