1 files changed, 31 insertions, 0 deletions
diff --git a/src/content/webglHook.js b/src/content/webglHook.js
new file mode 100644
index 0000000..ba0d769
--- /dev/null
+++ b/src/content/webglHook.js
@@ -0,0 +1,31 @@
+console.log("WebGL Hook", document.documentElement.innerHTML);
+try {
+  let proto = HTMLCanvasElement.prototype;
+  let getContext = proto.getContext;
+  exportFunction(function(type, ...rest) {
+    if (type && type.toLowerCase().includes("webgl")) {
+      let request = {
+        id: "noscript-webgl",
+        type: "webgl",
+        url: document.URL,
+        documentUrl: document.URL,
+        embeddingDocument: true,
+      };
+      seen.record({policyType: "webgl", request, allowed: false});
+      try {
+        let ph = PlaceHolder.create("webgl", request);
+        ph.replace(this);
+        PlaceHolder.listen();
+      } catch (e) {
+        error(e);
+      }
+      notifyPage();
+      return {};
+    }
+    return getContext.call(this, type, ...rest);
+  }, proto, {defineAs: "getContext"});
+} catch (e) {
+  console.error(e);
+}
+
+null;