[geary/ThamiMemel/geary-sandboxing_issue_#842: 3/3] Components.WebView: Switch to WebProcess document browser cache model

[Michael Gratton <mjog src gnome org>]

commit 5421ea466231714cb3f9cfb3d858055bdbc63b27
Author: Michael Gratton <mike vee net>
Date:   Wed Jan 20 23:03:40 2021 +1100

    Components.WebView: Switch to WebProcess document browser cache model
    
    Now we're using a single long-lived WebProcess for displaying multiple
    email, it makes sense to enable some caching.

 src/client/components/components-web-view.vala | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/client/components/components-web-view.vala b/src/client/components/components-web-view.vala
index 0abc8c58d..6896a6b83 100644
--- a/src/client/components/components-web-view.vala
+++ b/src/client/components/components-web-view.vala
@@ -82,9 +82,9 @@ public abstract class Components.WebView : WebKit.WebView, Geary.BaseInterface {
         // Enable WebProcess sandboxing
         context.add_path_to_sandbox(web_extension_dir.get_path(), true);
         context.set_sandbox_enabled(true);
-        // Use the doc viewer model since each web view instance only
-        // ever shows a single HTML document.
-        context.set_cache_model(WebKit.CacheModel.DOCUMENT_VIEWER);
+        // Use the doc browser model so that we get some caching of
+        // resources between email body loads.
+        context.set_cache_model(WebKit.CacheModel.DOCUMENT_BROWSER);
 
         context.register_uri_scheme("cid", (req) => {
                 WebView? view = req.get_web_view() as WebView;