Errors / Network errors

net::ERR_BLOCKED_BY_RESPONSE

The other website's own answer told the browser not to let this page use it.

An empty frame, or a missing image or script.

Why it happens

Framing: the framed page sends X-Frame-Options or frame-ancestors that exclude your site.
Cross-Origin-Resource-Policy: same-origin (or same-site) on an image or script used from another site.
Cross-origin isolation (Cross-Origin-Embedder-Policy) on your page requiring headers the other resource does not send.

How to fix it

The console line next to it names the header; the owner of that resource is the one who can allow it.
If your page sets Cross-Origin-Embedder-Policy, check whether it needs to.

Whose problem it is

Usually another company's script or site, embedded in this one.

Does your site have it?

Free, no account. We open your page and four more in a clean Chrome and list every error like this one, with the page and the click that caused it. How the free page check works.

Often seen with

frame-ancestors violationA website shown inside this page does not allow being shown on this site.
Refused to display in a frame (X-Frame-Options)The page tried to show another website inside it, and that website does not allow it.