this works but will be blocked by popup blockers
<a class="double-web-pages">open two websites</a>
<script>
document.querySelector("a.double-web-pages").addEventListener("click",function(){
window.open("https://www.storewebsite.com");
window.open("https://www.postswebsite.com");
})
</script>
and this one will open one new tab with store page and replace the current page with posts page
<a href="https://www.postswebsite.com" class="double-web-pages">open two websites</a>
<script>
document.querySelector("a.double-web-pages").addEventListener("click",function(){
window.open("https://www.storewebsite.com");
});
</script>
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solved Open two URLs at once when open one url? [closed]