I am running a development system under Joomla and IIS with CiviCRM 5.19.1 (5.19.0 had the same issue). When using API Explorer 4 I get windows like this.
Under LAMP, the window makes sense.
Any suggestions?
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Looks like something is wrong with angular in your browser or civicrm installation. – Jaap Jansma - CiviCooP Nov 13 '19 at 8:33
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Thanks @JaapJansma-CiviCooP. Where does angular live? …/administrator/components/com_civicrm/cvicrm/ang? – Stephen Palmstrom Nov 13 '19 at 11:35
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Multiple sources and combined and stored in a cache. I am not a joomla expert. But in drupal it helps to clear the cache, and empty sites/default/files/js folder. How that works in Joomla I dont know. – Jaap Jansma - CiviCooP Nov 13 '19 at 14:57
The problem was caused by IIS Request Filtering Hidden Segments. By default IIS has a hidden segment called bin. API Explorer 4 attempts to get JavaScript from
.../administrator/components/com_civicrm/civicrm/bower_components/google-code-prettify/bin/
Notice the bin folder name. Removing the bin Hidden Segment cured the problem. Security isn't an issue - the web site is only accessible in the local environment.
