Bug 1770395 - Telemetry for file protocol script loads. r=freddyb

Differential Revision: https://phabricator.services.mozilla.com/D146902
inscapist · May 25, 2022 · 0182433 · 0182433
1 parent 3cc9231
commit 0182433
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diff --git a/dom/security/nsContentSecurityManager.cpp b/dom/security/nsContentSecurityManager.cpp
@@ -1291,9 +1291,11 @@ static nsresult CheckAllowFileProtocolScriptLoad(nsIChannel* aChannel) {
 
   if (!nsContentUtils::IsJavascriptMIMEType(
           NS_ConvertUTF8toUTF16(contentType))) {
+    Telemetry::Accumulate(Telemetry::SCRIPT_FILE_PROTOCOL_CORRECT_MIME, false);
     return NS_ERROR_CONTENT_BLOCKED;
   }
 
+  Telemetry::Accumulate(Telemetry::SCRIPT_FILE_PROTOCOL_CORRECT_MIME, true);
   return NS_OK;
 }
 

diff --git a/toolkit/components/telemetry/Histograms.json b/toolkit/components/telemetry/Histograms.json
@@ -10085,6 +10085,16 @@
     "labels": ["unknown","javaScript","image", "audio", "video","text_plain","text_csv","text_xml","app_octet_stream","app_xml","app_json","text_json","text_html","empty","serviceworker_load","worker_load","importScript_load","script_load","same_origin","CORS_origin","cross_origin", "worklet_load"],
     "description": "Whether the script load has a MIME type of ...?  (unknown, javaScript, image, audio, video, text_plain, text_csv, text_xml, app_octet_stream, app_xml, app_json, text_json, text_html, empty). Whether the script load is from ...?  (serviceworker_load, worker_load, importSript_load, script_load). Whether the script load is of ...?  (same_origin, CORS_origin, cross_origin)"
   },
+  "SCRIPT_FILE_PROTOCOL_CORRECT_MIME": {
+    "record_in_processes": ["main", "content"],
+    "products": ["firefox"],
+    "alert_emails": ["[email protected]"],
+    "bug_numbers": [1770395],
+    "expires_in_version": "107",
+    "releaseChannelCollection": "opt-out",
+    "kind": "boolean",
+    "description": "Script loaded from file:// has a correct MIME type."
+  },
   "NEWTAB_PAGE_ENABLED": {
     "record_in_processes": ["main", "content"],
     "products": ["firefox", "fennec"],