The power of the HTML5 inside Construct 3. Create HTMLElements, handle events and manage CSS style.
Without an error message log it is complicated to figure out where the problem is.
If you just need to add a pixel you can try doing it directly on C3 without the need for specific plugins.
You can add a script like this when starting the first layout:
+ System: On start of layout
-> Run JavaScript: const noScript = document.createElement("noscript");
const img =document.createElement("img");
const yourPixelId = "abc"
img.height = "1";
img.width = "1"
img.style.display = "none";
img.src = `https://www.facebook.com/tr?id=${yourPixelId}&ev=PageView&noscript=1`;
noScript.appendChild(img);
document.body.appendChild(noScript);
This is a simple c3p file: drive.google.com/file/d/1fdQ1oGPKmY2IXOIJbMAanw5n0a6xvJom/view