storage without javascript, do I have another way to do??

In old builder, I can setup the storage to be a "javascript type" but there is no option in upgrade builder, I create a storage "listAreaCode" in Model and Storage with type "Window", but show Uncaught Type Error in the TEST Browere console: undefined is not a function gmail_tooltip_check.js:1(anonymous function) gmail_tooltip_check.js:1(anonymous function).................what can I do ???
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