SecurityError: Failed to read the 'sessionStorage' property from 'Window': The document is sandboxed

[Faxree]

Hello, my problem with cart just getting worse and worse. I really need some help!! Does anyone see what my problems are? I can send url or code if needed. 



SecurityError: Failed to read the 'sessionStorage' property from 'Window': The document is sandboxed and lacks the 'allow-same-origin' flag. at new Jh (contentScript.js:9:165882) at mR (contentScript.js:9:168281) at contentScript.js:9:168858 at contentScript.js:9:168886

cart.js:2 cart.js loaded cart-drawer.js:2 cart-drawer.js loaded cart-drawer.js:18 CartDrawerItems created! cart-drawer.js:21 Uncaught TypeError: custom element constructors must call super() first and must not return a different object at HTMLDocument.<anonymous> (cart-drawer.js:21:24) content.js:1 Extension is off. content.js:1 Extension is off. cart-drawer.js:18 CartDrawerItems created! cart-drawer.js:123 Uncaught TypeError: custom element constructors must call super() first and must not return a different object at cart-drawer.js:123:36 at Array.forEach (<anonymous>) at HTMLElement.renderContents (cart-drawer.js:117:40) at product-form.js:88:25