Code added to HTML in WYSIWYG editor

Hi there Ben,

I recently encountered an issue where if I edit my html for the email in something like notepad++ and then paste it into the editor in sendy, it is adding some additional code. I have the editor switched to source mode, when I do this, but if you go back to the editor at any point (From the edit newsletter link) it appears the editor turns source mode back over to WYSIWYG, then inserts the following code to the email itself.

try { Object.defineProperty(screen, "availTop", { value: 0 }); } catch (e) {} try { Object.defineProperty(screen, "availLeft", { value: 0 }); } catch (e) {} try { Object.defineProperty(screen, "availWidth", { value: 1920 }); } catch (e) {} try { Object.defineProperty(screen, "availHeight", { value: 1080 }); } catch (e) {} try { Object.defineProperty(screen, "colorDepth", { value: 24 }); } catch (e) {} try { Object.defineProperty(screen, "pixelDepth", { value: 24 }); } catch (e) {} try { Object.defineProperty(navigator, "hardwareConcurrency", { value: 8 }); } catch (e) {} try { Object.defineProperty(navigator, "webkitTemporaryStorage", { value: undefined }); } catch (e) {} try { Object.defineProperty(navigator, "webkitPersistentStorage", { value: undefined }); } catch (e) {} try { Object.defineProperty(navigator, "appVersion", { value: "5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36" }); } catch (e) {} try { Object.defineProperty(navigator, "doNotTrack", { value: null }); } catch (e) {} navigator.getBattery = function getBattery () { let battery = {"charging":true,"chargingTime":0,"dischargingTime":null,"level":1} try { Object.defineProperty(battery, 'onchargingchange', { enumerable: true, configurable: false, writable: false, value: undefined }) } catch (e) {} try { Object.defineProperty(battery, 'onchargingtimechange', { enumerable: true, configurable: false, writable: false, value: undefined }) } catch (e) {} try { Object.defineProperty(battery, 'ondischargingtimechange', { enumerable: true, configurable: false, writable: false, value: undefined }) } catch (e) {} try { Object.defineProperty(battery, 'onlevelchange', { enumerable: true, configurable: false, writable: false, value: undefined }) } catch (e) {} battery.addEventListener = function addEventListener () { return } return Promise.resolve(battery) } try { window.screenY = 0 } catch (e) { } try { window.screenTop = 0 } catch (e) { } try { window.top.window.outerHeight = window.screen.height } catch (e) { } try { window.screenX = 0 } catch (e) { } try { window.screenLeft = 0 } catch (e) { } try { window.top.window.outerWidth = window.screen.width } catch (e) { }