The error message “DOMException: Failed to execute ‘insertBefore’ on ‘Node’: The node before which the new node is to be inserted is not a child of this node” indicates that there is an attempt to insert a new node before another node, but the reference node (the node before which the new node is to be inserted) is not a child of the parent node on which the insertBefore operation is called.
The error arises when using the insertBefore method in the DOM, where the specified reference node for insertion is not a direct child of the parent node attempting to perform the insertion. The insertBefore method is designed to insert a new node before an existing child node of a parent node. If the reference node is not a child of the parent node, the operation fails, resulting in the described DOMException.
To resolve this issue, it is essential to ensure that the reference node specified for insertion is indeed a child of the parent node. Verify the hierarchy and relationships between nodes to guarantee that the insertBefore operation is applied correctly within the DOM structure.
In this code:
return (
<html lang="en" suppressHydrationWarning>
<head>
{/* Head content goes here */}
</head>
<body>
<Providers>
{children}
</Providers>
</body>
<div className="w-full flex flex-col items-center mt-6">
<Footer />
</div>
</html>
);
Initially the footer class was given outside the html content which caused the error. It was not according to the hierarchy and hence the issue was raised. When footer was given inside the html tag, issue was resolved.