From fd1f0f647f46e858d731f598fc1022ba1762b610 Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Thu, 23 Sep 2021 15:02:24 +0200
Subject: [PATCH] Print a special warning message, in the viewer, for XFA
 Foreground documents

Currently XFAF documents use the same warning message as in the XFA *disabled* case, which is neither helpful nor correct.
---
 src/display/api.js | 1 +
 web/app.js         | 7 +++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/display/api.js b/src/display/api.js
index 61a1b8500..46a5331f0 100644
--- a/src/display/api.js
+++ b/src/display/api.js
@@ -3060,6 +3060,7 @@ class WorkerTransport {
     const params = this._params;
     return shadow(this, "loadingParams", {
       disableAutoFetch: params.disableAutoFetch,
+      enableXfa: params.enableXfa,
     });
   }
 }
diff --git a/web/app.js b/web/app.js
index 125383681..01f303e04 100644
--- a/web/app.js
+++ b/web/app.js
@@ -1555,10 +1555,13 @@ const PDFViewerApplication = {
     if (
       info.IsXFAPresent &&
       !info.IsAcroFormPresent &&
-      // Note: `isPureXfa === true` implies that `enableXfa = true` was set.
       !pdfDocument.isPureXfa
     ) {
-      console.warn("Warning: XFA support is not enabled");
+      if (pdfDocument.loadingParams.enableXfa) {
+        console.warn("Warning: XFA Foreground documents are not supported");
+      } else {
+        console.warn("Warning: XFA support is not enabled");
+      }
       this.fallback(UNSUPPORTED_FEATURES.forms);
     } else if (
       (info.IsAcroFormPresent || info.IsXFAPresent) &&