Server Health widget not loading on Plesk 12.5 Home page: Cannot read property escapeHTML

Created:

2016-11-16 12:50:00 UTC

Modified:

2017-08-08 13:26:39 UTC

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Server Health widget not loading on Plesk 12.5 Home page: Cannot read property escapeHTML

Applicable to:

  • Plesk 12.5 for Linux

Symptoms

Health Monitor is running fine when accessed from the left-hand Home menu. However, the Server Health widget on the Plesk Home page is not loading.

Javascript error can be observed in web browser:

Uncaught TypeError: Cannot read property 'escapeHTML' of null prototype.js?1440594985:861
Jsw.Promo.Item.Class.create.render @ jsw.js:7124
(anonymous function) @ prototype.js?1440594985:447
Jsw.Promo.Class.create._showCurrentItems @ jsw.js:7093
Jsw.Promo.Class.create._renderItems @ jsw.js:7028
Jsw.Container.Class.create.render @ jsw.js:1518
(anonymous function) @ prototype.js?1440594985:447
Jsw.Component.Class.create.initialize @ jsw.js:344
klass @ prototype.js?1440594985:80
(anonymous function) @ admin:484
(anonymous function) @ jsw.js:136
each @ prototype.js?1440594985:859
Jsw._fireOnReady @ jsw.js:135
(anonymous function) @ prototype.js?1440594985:7191

Cause

The behaviour is caused by a software issue PPPM-4436 in Plesk News Extension 1.5.It has been resolved in version 1.6 of Plesk News.

Resolution

Update Plesk News via Extensions Management to version 1.6 or uninstall it.

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