javascript - After filling in the content and selecting the address, the order page jumps, but the content returned is gone. What should I do?

Question

After filling in the content on the order page, click Select Address to jump to the page. After selecting it, return to the original page. The original content is gone. What should I do?
How is it usually done? I thought of making it a single page, but The selection is already multiple pages, jumping around?

Answer 1

If the page where you select the address needs to jump, you can cache the val of the form on the order page, but it is recommended that you select the address on the order page. You can select the address through a pop-up box or the like, or select the address via select option

Answer 2

localStorage, store data locally