Tips for identifying when a tab has been reopened following closure?

There seems to be a problem with the JS state where it changes but then reverts back to its original state when the tab is closed and restored using cmd/ctrl + shift + t.

Typically, data is fetched from the server via ajax using Vue's mounted() lifecycle hook when the page loads. However, upon restoration of the tab, the data is loaded as it was during the initial load, rather than fetching it again through the API.

Answer №1

This behavior is intentional - Ctrl-Shift-T functions similarly to Ctrl-Tab in that it switches tabs without refreshing the content.

To achieve a similar effect, you can follow these steps:

1) Assign each request a random unique ID on the server-side, which is accessible in JavaScript

2) On unload (or beforeunload, test both), add the ID to an array cookie tracking unloaded IDs

3) Upon load, check if the ID is in the array cookie. If present, the tab was unloaded before reloading. The load event seems to be triggered by Ctrl-Shift-T

4) Remember to occasionally clear out the cookie ID array (and possibly store additional timestamps)

You can also experiment with using window.sessionStorage instead of cookies/local storage for this purpose; I personally have not used it enough to fully trust it, but the concept remains the same - mark when the window is unloaded and check upon loading.

Answer №2

Here are some alternative solutions that might also be effective for your situation:

1) One method is to utilize the window.history API on page load in order to append a unique slug to the URL, like #dorefresh. Then, during subsequent page loads, you can check for the presence of this slug and trigger a refresh if necessary.

OR

2) Another approach involves adding a timestamp when the page is generated (ensuring it's in UTC to avoid timezone discrepancies). Upon each page load, you can compare the current load time with the generation time to determine if a refresh is needed. This method has its limitations due to potential time discrepancies and may not be suitable for cacheable pages.

OR

3) To address stale AJAX requests, consider including a no-store header in the AJAX response (specifically for the AJAX response, not the main page) to prevent browsers from storing a cached copy of the data.

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