From 993b776bb2cb07c66d79653fbfde6d44d1b05ddb Mon Sep 17 00:00:00 2001
From: roytam1 <roytam@gmail.com>
Date: Fri, 29 Apr 2022 22:15:44 +0800
Subject: [PATCH] import from UXP: [network] Add non-overrideable default MIME
 types for js, jsm and json. (bca191c2)

---
 uriloader/exthandler/nsExternalHelperAppService.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/uriloader/exthandler/nsExternalHelperAppService.cpp b/uriloader/exthandler/nsExternalHelperAppService.cpp
index 9a9dbab69..3305e1813 100644
--- a/uriloader/exthandler/nsExternalHelperAppService.cpp
+++ b/uriloader/exthandler/nsExternalHelperAppService.cpp
@@ -466,6 +466,9 @@ static const nsDefaultMimeTypeEntry defaultMimeEntries[] =
   { "application/xhtml+xml", "xhtml" },
   { "application/xhtml+xml", "xht" },
   { TEXT_PLAIN, "txt" },
+  { APPLICATION_JSON, "json"},
+  { APPLICATION_XJAVASCRIPT, "js"},
+  { APPLICATION_XJAVASCRIPT, "jsm"},
   { VIDEO_OGG, "ogv" },
   { VIDEO_OGG, "ogg" },
   { APPLICATION_OGG, "ogg" },