设置Magento的内容长度标题

Question

I'm battling some site performance issues now and one of the recommendations is to disable chunked encoding .

Our site pages aren't large enough to need it and there's too much overhead. I'm not very familiar with HTTP headers, but what I've learned is that the " Transfer-Encoding: chunked " header gets set automatically if you do not have a " Content-Length " header.

Does anyone know how I could go about setting the " Content-Length " header in Magento? It would need to work for all pages as well as for any pages that are cached (We use the Lightspeed full page caching extension).

Answer 1

I can't speak for the Lightspeed full page caching extension (you need to contact their support for your issue), but as magento has a single entry point via index.php , you can hack it and wrap the output in a buffer:

ob_start();

# ... run magento here

$buffer = ob_get_clean();

You then set the content-length header:

header(sprintf("Content-Length: %s", strlen($buffer)));

Then sending out the buffer:

echo $buffer;

This might not work with your caching extension or if other extensions are breaking the output buffering chain.