From ea1d090109512045e68833a8f2c5626142c25def Mon Sep 17 00:00:00 2001
From: Calixte Denizet <calixte.denizet@gmail.com>
Date: Mon, 13 Mar 2023 16:56:42 +0100
Subject: [PATCH] Remove <base> tag from the Firefox built-in viewer (bug
 1821408)

The tag <base> is used to resolve relative URIs within the document.
Newly added SVG filters use a relative URI which then use the URI in base
but this one mismatches with the document URI and consequently filters are
not found in the Firefox viewer.
So this patch just removes <base> and replace few relative URLs by absolute
ones.
---
 web/app_options.js                        |  3 +++
 web/viewer-geckoview.html                 |  4 ++--
 web/viewer-snippet-firefox-extension.html |  3 +--
 web/viewer.html                           | 13 ++++++++++---
 4 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/web/app_options.js b/web/app_options.js
index f0a5491e3bd31..79d8e5f619b24 100644
--- a/web/app_options.js
+++ b/web/app_options.js
@@ -284,8 +284,11 @@ const defaultOptions = {
   workerSrc: {
     /** @type {string} */
     value:
+      // eslint-disable-next-line no-nested-ternary
       typeof PDFJSDev === "undefined" || !PDFJSDev.test("PRODUCTION")
         ? "../src/worker_loader.js"
+        : PDFJSDev.test("MOZCENTRAL")
+        ? "resource://pdf.js/build/pdf.worker.js"
         : "../build/pdf.worker.js",
     kind: OptionKind.WORKER,
   },
diff --git a/web/viewer-geckoview.html b/web/viewer-geckoview.html
index f96eb3b951b7a..03f3f64b0746a 100644
--- a/web/viewer-geckoview.html
+++ b/web/viewer-geckoview.html
@@ -31,7 +31,7 @@
 <!--#endif-->
 
 <!--#if MOZCENTRAL-->
-<!--<link rel="stylesheet" href="viewer.css">-->
+<!--<link rel="stylesheet" href="resource://pdf.js/web/viewer.css">-->
 <!--#else-->
 <link rel="stylesheet" href="viewer-geckoview.css">
 <!--#endif-->
@@ -71,7 +71,7 @@
 
     <script src="viewer-geckoview.js" type="module-shim"></script>
 <!--#else-->
-<!--<script src="viewer.js"></script>-->
+<!--<script src="resource://pdf.js/web/viewer.js"></script>-->
 <!--#endif-->
 
   </head>
diff --git a/web/viewer-snippet-firefox-extension.html b/web/viewer-snippet-firefox-extension.html
index b153febfa1d84..c7c416d503b57 100644
--- a/web/viewer-snippet-firefox-extension.html
+++ b/web/viewer-snippet-firefox-extension.html
@@ -1,3 +1,2 @@
 <!-- This snippet is used in the Firefox extension (included from viewer.html) -->
-<base href="resource://pdf.js/web/">
-<script src="../build/pdf.js"></script>
+<script src="resource://pdf.js/build/pdf.js"></script>
diff --git a/web/viewer.html b/web/viewer.html
index 112083dbff61c..582c7ee4d6d64 100644
--- a/web/viewer.html
+++ b/web/viewer.html
@@ -36,7 +36,12 @@
 <!--#include viewer-snippet-chrome-extension.html-->
 <!--#endif-->
 
+<!--#if MOZCENTRAL-->
+<!--<link rel="stylesheet" href="resource://pdf.js/web/viewer.css">-->
+<!--#else-->
     <link rel="stylesheet" href="viewer.css">
+<!--#endif-->
+
 <!--#if !PRODUCTION-->
     <link rel="resource" type="application/l10n" href="locale/locale.properties">
 <!--#endif-->
@@ -77,10 +82,12 @@
 <!--#include viewer-snippet.html-->
 <!--#endif-->
 
-<!--#if !MINIFIED -->
-<!--<script src="viewer.js"></script>-->
-<!--#else-->
+<!--#if MINIFIED-->
 <!--#include viewer-snippet-minified.html-->
+<!--#elif MOZCENTRAL-->
+<!--<script src="resource://pdf.js/web/viewer.js"></script>-->
+<!--#else-->
+<!--<script src="viewer.js"></script>-->
 <!--#endif-->
 
   </head>