[openstreetmap] Ensure location key is available in hook data

- Address https://github.com/friendica/friendica/issues/10169#issuecomment-835548421

diff --git a/openstreetmap/openstreetmap.php b/openstreetmap/openstreetmap.php
index 168d3d2ff4bb71b5dc507d9045cad2f32ab256ac..08111a0c873bbab722aa07a3cb5e855333852989 100644 (file)
--- a/openstreetmap/openstreetmap.php
+++ b/openstreetmap/openstreetmap.php
@@ -164,7 +164,7 @@ function openstreetmap_generate_map(&$a, &$b)
                $cardlink .= '?mlat=' . $lat . '&mlon=' . $lon;
        }
 
-       $cardlink .= '#map=' . $zoom . '/' . $lat . '/' . $lon . '">' . ($b['location'] ? Strings::escapeHtml($b['location']) : DI::l10n()->t('View Larger')) . '</a>';
+       $cardlink .= '#map=' . $zoom . '/' . $lat . '/' . $lon . '">' . ($b['location'] ??0? Strings::escapeHtml($b['location']) : DI::l10n()->t('View Larger')) . '</a>';
        if (empty($b['mode'])) {
                $b['html'] = '<iframe style="width:100%; height:300px; border:1px solid #ccc" src="' . $tmsserver .
                                '/export/embed.html?bbox=' . ($lon - 0.01) . '%2C' . ($lat - 0.01) . '%2C' . ($lon + 0.01) . '%2C' . ($lat + 0.01) .