History of Reflect.preventExtensions() Revision history for: English (US) Aug 16, 2016, 9:26:09 AM eduardoboucas Standardize Exceptions section Previous Feb 6, 2016, 6:10:19 AM gingerik Previous Jan 4, 2016, 5:04:09 AM fscholz Remove {{harmony}}; remove "Experimental" tag; add link to ES draft spec Previous Nov 4, 2015, 7:10:33 AM cmbankester Aug 3, 2015, 7:23:22 AM fscholz new page; bug 987514