Add HTML to my pages using SPFX extension

Question

I want to force my modern pages to refresh each 3000 seconds >> so i develop an spfx extension >> where inside my .ts i added the following code:-

now when i add the SPFX to my site, the pages will NOT load each 3000 seconds.. so seems:-

did not have any effect.. although I have a customStyle which get applied correctly.. any advice?

Answer 1

I test with this code, to facilitate testing, I changed the refresh time to 3 seconds.

setTimeout(function (){   
	window.location.reload();  
}, 3000);  

Test result for your reference:

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