Upstream commit: https://github.com/WebKit/WebKit/commit/31ac354cbeecf866f9a38f7b2f8f59f7975d3f6a

diff --git a/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp b/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
index ecc804663784..8de174be3c0e 100644
--- a/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
+++ b/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
@@ -288,6 +288,7 @@ static void bindFonts(Vector<CString>& args)
     const char* homeDir = g_get_home_dir();
     const char* dataDir = g_get_user_data_dir();
     const char* cacheDir = g_get_user_cache_dir();
+    const char* const * dataDirs = g_get_system_data_dirs();
 
     // Configs can include custom dirs but then we have to parse them...
     GUniquePtr<char> fontConfig(g_build_filename(configDir, "fontconfig", nullptr));
@@ -304,6 +305,10 @@ static void bindFonts(Vector<CString>& args)
     bindIfExists(args, fontHomeConfigDir.get());
     bindIfExists(args, fontData.get());
     bindIfExists(args, fontHomeData.get());
+    for (auto* dataDir = dataDirs; dataDir && *dataDir; dataDir++) {
+        GUniquePtr<char> fontDataDir(g_build_filename(*dataDir, "fonts", nullptr));
+        bindIfExists(args, fontDataDir.get());
+    }
     bindIfExists(args, "/var/cache/fontconfig"); // Used by Debian.
 }
 
ild/image.scm?id=b5e03030b0fd21bba86f1b5496ceee8997dc9756'>commit</a><a href='/guix/diff/gnu/build/image.scm?id=b5e03030b0fd21bba86f1b5496ceee8997dc9756'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/build/image.scm'>
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<div class='path'>path: <a href='/guix/log/?id=b5e03030b0fd21bba86f1b5496ceee8997dc9756'>root</a>/<a href='/guix/log/gnu?id=b5e03030b0fd21bba86f1b5496ceee8997dc9756'>gnu</a>/<a href='/guix/log/gnu/build?id=b5e03030b0fd21bba86f1b5496ceee8997dc9756'>build</a>/<a href='/guix/log/gnu/build/image.scm?id=b5e03030b0fd21bba86f1b5496ceee8997dc9756'>image.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/build/image.scm?id=b5e03030b0fd21bba86f1b5496ceee8997dc9756&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-06-14 14:52:21 +0300'>2023-06-14</span></td><td><a href='/guix/commit/gnu/build/image.scm?id=cd55aa98011c42b8e97561f4eea024be751bcceb'>gnu: image: Add support for unformatted partitions.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/build/image.scm (make-unformatted-image): New procedure.
(make-partition-image): Add support for unformatted partition.
* gnu/system/image.scm (system-disk-image)[partition-&gt;gpt-type]: Add
case for using unformatted partition uuid.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2022-12-12 10:47:59 +0200'>2022-12-12</span></td><td><a href='/guix/commit/gnu/build/image.scm?id=45f5feb279860cde0d8032f05c3e5b45588b9609'>image: Use 512 byte blocks for EFI partitions.</a><span class='msg-avail'>...<span class='msg-tooltip'>Addresses &lt;https://issues.guix.gnu.org/59695&gt;.

* gnu/build/image.scm (make-vfat-image): When creating a fat filesystem
for UEFI bootable partition use 512 byte blocks.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2022-08-30 19:29:58 +0200'>2022-08-30</span></td><td><a href='/guix/commit/gnu/build/image.scm?id=192b7d0c0b0958d6c87df6084a644e0c7eca2ec0'>build: image: Make partition uuid optional.</a><span class='msg-avail'>...<span class='msg-tooltip'>The uuid field of &lt;partition&gt; defaults to #false. This should be reflected
when creating the partition.

* gnu/build/image.scm (make-ext-image): Make it optional.
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2022-08-30 19:29:58 +0200'>2022-08-30</span></td><td><a href='/guix/commit/gnu/build/image.scm?id=61bbff9d5015d0f60ad68f1814e0a0b0ea0592b8'>build: image: Remove unused variable.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/build/image.scm (make-ext-image): Remove the unused flags variable.
</span></span></td><td>Mathieu Othacehe</td></tr>