Merge pull request #2806 from weseek/imprv/fix-error-popover-not-find-target

Imprv/fix error popover not find target

src/client/js/components/PageEditor/LinkEditModal.jsx

@@ -314,7 +314,7 @@ class LinkEditModal extends React.PureComponent {
                 <button type="button" id="preview-btn" className="btn btn-info btn-page-preview">
                   <PagePreviewIcon />
                 </button>
-                <Popover placement="right" isOpen={this.state.isPreviewOpen} target="preview-btn" toggle={this.toggleIsPreviewOpen}>
+                <Popover trigger="focus" placement="right" isOpen={this.state.isPreviewOpen} target="preview-btn" toggle={this.toggleIsPreviewOpen}>
                   <PopoverBody>
                     {this.renderPreview()}
                   </PopoverBody>