diff --git a/config/allowed-code-link-text.txt b/config/allowed-code-link-text.txt
index 4f4f553..c8dc39b 100644
--- a/config/allowed-code-link-text.txt
+++ b/config/allowed-code-link-text.txt
@@ -63,6 +63,7 @@ contain-intrinsic-size: auto none
 cubic-bezier(0, 0, 1, 1)
 cubic-bezier(p1, p2, p3, p4)
 delete obj.x
+for each...in
 import ... with { type: "css" }
 instanceof Array
 minmax(auto, max-content)
diff --git a/config/no-bcd.txt b/config/no-bcd.txt
new file mode 100644
index 0000000..78f2ed8
--- /dev/null
+++ b/config/no-bcd.txt
@@ -0,0 +1,78 @@
+  This file contains BCD keys that can be derived from content pages,
+  but are not actually tracked in BCD usually because support is not interesting
+  or browser support is irrelevant.
+  Use two-space indent for comments.
+
+html.global_attributes.itemid
+html.global_attributes.itemprop
+html.global_attributes.itemref
+html.global_attributes.itemscope
+html.global_attributes.itemtype
+
+http.headers.Accept-Charset
+http.headers.Accept-Patch
+http.headers.Accept-Post
+
+  https://github.com/mdn/browser-compat-data/pull/23529
+http.status.100
+http.status.101
+http.status.102
+http.status.200
+http.status.201
+http.status.202
+http.status.203
+http.status.204
+http.status.205
+http.status.206
+http.status.207
+http.status.208
+http.status.226
+http.status.300
+http.status.301
+http.status.302
+http.status.303
+http.status.304
+http.status.307
+http.status.400
+http.status.401
+http.status.402
+http.status.403
+http.status.404
+http.status.405
+http.status.406
+http.status.407
+http.status.408
+http.status.409
+http.status.410
+http.status.411
+http.status.412
+http.status.413
+http.status.414
+http.status.415
+http.status.416
+http.status.417
+http.status.418
+http.status.421
+http.status.422
+http.status.423
+http.status.424
+http.status.426
+http.status.428
+http.status.429
+http.status.431
+http.status.451
+http.status.500
+http.status.501
+http.status.502
+http.status.503
+http.status.504
+http.status.505
+http.status.506
+http.status.507
+http.status.508
+http.status.510
+http.status.511
+
+  https://github.com/mdn/browser-compat-data/pull/23774
+html.manifest.categories
+html.manifest.screenshots
diff --git a/src/server/check-bcd-matching.ts b/src/server/check-bcd-matching.ts
index 58f77e8..c26f74d 100644
--- a/src/server/check-bcd-matching.ts
+++ b/src/server/check-bcd-matching.ts
@@ -1,12 +1,14 @@
 import nodes from "../../data/nodes.json" with { type: "json" };
 import bcdData from "@mdn/browser-compat-data" with { type: "json" };
 import { readConfig, configHas } from "./config.js";
-import { getBCD } from "./utils.js";
+import { getBCD, readConfig } from "./utils.js";
 
 const dictionaries = new Map(
   (await readConfig("dictionaries.txt")).map((x) => [x, false]),
 );
 
+const noBCD = new Map((await readConfig("no-bcd.txt")).map((x) => [x, false]));
+
 function htmlAttrToBCD(attrName: string, elemName: string) {
   if (attrName === "data-*") {
     attrName = "data_attributes";
@@ -166,7 +168,14 @@ function expectedBCD(node: any): "Unexpected page type" | "ignore" | string[] {
       return [`html.elements.${elemName}`];
     }
     // Mozilla/Add-ons/WebExtensions/
-    case "webextension-api-function":
+    case "webextension-api-function": {
+      const match = node.id.match(
+        /^\/en-US\/docs\/Mozilla\/Add-ons\/WebExtensions\/Content_scripts\/([^/]+)$/,
+      );
+      if (match) {
+        return [`webextensions.content_scripts.${match[1]}`];
+      }
+    }
     case "webextension-api-event":
     case "webextension-api-property":
     case "webextension-api-type": {
@@ -221,11 +230,33 @@ function expectedBCD(node: any): "Unexpected page type" | "ignore" | string[] {
     case "webgl-extension-method": {
       const match = node.id.match(/^\/en-US\/docs\/Web\/API\/(.+)$/);
       if (!match) return "Unexpected page type";
-      const path = dictionaryToBCD(
-        match[1]
-          .replaceAll("/", ".")
-          .replace(/^CSS\.factory_functions_static$/, "CSS"),
-      );
+      switch (match[1]) {
+        case "CSS/factory_functions_static":
+          return [`api.CSS`];
+        // These pages coalesce multiple methods into one, and only display one BCD
+        case "WebGL2RenderingContext/clearBuffer":
+          return [`api.WebGL2RenderingContext.clearBufferiv`];
+        case "WebGL2RenderingContext/samplerParameter":
+          return [`api.WebGL2RenderingContext.samplerParameteri`];
+        case "WebGL2RenderingContext/uniform":
+          return [`api.WebGL2RenderingContext.uniform1ui`];
+        case "WebGL2RenderingContext/uniformMatrix":
+          return [`api.WebGL2RenderingContext.uniformMatrix2fv`];
+        case "WebGL2RenderingContext/vertexAttribI":
+          return [`api.WebGL2RenderingContext.vertexAttribI4i`];
+        case "WebGLRenderingContext/texParameter":
+          return [
+            `api.WebGLRenderingContext.texParameterf`,
+            `api.WebGLRenderingContext.texParameteri`,
+          ];
+        case "WebGLRenderingContext/uniform":
+          return [`api.WebGLRenderingContext.uniform1f`];
+        case "WebGLRenderingContext/uniformMatrix":
+          return [`api.WebGLRenderingContext.uniformMatrix2fv`];
+        case "WebGLRenderingContext/vertexAttrib":
+          return [`api.WebGLRenderingContext.vertexAttrib1f`];
+      }
+      const path = dictionaryToBCD(match[1].replaceAll("/", "."));
       if (configHas(dictionaries, path.split(".")[0])) return [];
       return [`api.${path}`];
     }
@@ -521,6 +552,7 @@ export function checkBCDMatching(
     }
     const expectedExisting = expected.filter((x) => getBCD(bcdData, x));
     if (!expectedExisting.length && expected.length) {
+      if (configHas(noBCD, node.id)) continue;
       report(node, "Not in BCD", expected.join("\n"));
       continue;
     }
@@ -542,4 +574,7 @@ export function postCheckBCDMatching() {
   for (const [name, used] of dictionaries) {
     if (!used) console.warn(name, "is no longer documented");
   }
+  for (const [name, used] of noBCD) {
+    if (!used) console.warn(name, "is no longer documented");
+  }
 }
diff --git a/src/server/create-graph.ts b/src/server/create-graph.ts
index fa881ea..0b9c0c1 100644
--- a/src/server/create-graph.ts
+++ b/src/server/create-graph.ts
@@ -386,7 +386,7 @@ for (const node of nodes) {
     pageToSidebarId.set(node.id, processedSidebars.get(normalizedHTML)!.id);
     continue;
   }
-  const $ = load(sidebarHTML);
+  const $ = load(normalizedHTML);
   const links = $("a")
     .map((i, a) => ({
       href: $(a).attr("href")?.replace(/\/$/, ""),