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<title>[47768] trunk/src/wp-includes/class-wp-fatal-error-handler.php: Site Health: Do not trigger the fatal error handler while updates are being installed.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/47768">47768</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/47768","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>SergeyBiryukov</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2020-05-06 14:36:47 +0000 (Wed, 06 May 2020)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Site Health: Do not trigger the fatal error handler while updates are being installed.
Triggering the error handler during updates may cause false positives. For example, updates may temporarily "fail" while files are moved around, but work fine once completed. Sending emails about temporary failures would just be confusing to the recipient.
Props Clorith, airamerica.
Fixes <a href="https://core.trac.wordpress.org/ticket/48964">#48964</a>.</pre>
<h3>Modified Paths</h3>
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<li><a href="#trunksrcwpincludesclasswpfatalerrorhandlerphp">trunk/src/wp-includes/class-wp-fatal-error-handler.php</a></li>
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<h3>Diff</h3>
<a id="trunksrcwpincludesclasswpfatalerrorhandlerphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/class-wp-fatal-error-handler.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-fatal-error-handler.php 2020-05-06 13:24:09 UTC (rev 47767)
+++ trunk/src/wp-includes/class-wp-fatal-error-handler.php 2020-05-06 14:36:47 UTC (rev 47768)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -30,6 +30,11 @@
</span><span class="cx" style="display: block; padding: 0 10px"> return;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // Do not trigger the fatal error handler while updates are being installed.
+ if ( wp_in_maintenance_mode() ) {
+ return;
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> try {
</span><span class="cx" style="display: block; padding: 0 10px"> // Bail if no error found.
</span><span class="cx" style="display: block; padding: 0 10px"> $error = $this->detect_error();
</span></span></pre>
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