From 4e1184b3e824e19f1f640020e9c2ffd9eb3cfdd6 Mon Sep 17 00:00:00 2001
From: Chandler Prall <chandler.prall@gmail.com>
Date: Thu, 30 Jul 2020 11:50:31 -0600
Subject: [PATCH 1/2] Remove the popover arrow from datagrid expanded cells

---
 src-docs/src/views/datagrid/schema.js      | 2 +-
 src/components/datagrid/data_grid_cell.tsx | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src-docs/src/views/datagrid/schema.js b/src-docs/src/views/datagrid/schema.js
index 44192d309a2..3a5823ef879 100644
--- a/src-docs/src/views/datagrid/schema.js
+++ b/src-docs/src/views/datagrid/schema.js
@@ -110,7 +110,7 @@ export default class DataGridSchema extends Component {
 
     this.state = {
       data,
-      sortingColumns: [{ id: 'contributions', direction: 'asc' }],
+      sortingColumns: [{ id: 'custom', direction: 'asc' }],
 
       pagination: {
         pageIndex: 0,
diff --git a/src/components/datagrid/data_grid_cell.tsx b/src/components/datagrid/data_grid_cell.tsx
index a764e6975c3..1b77a973664 100644
--- a/src/components/datagrid/data_grid_cell.tsx
+++ b/src/components/datagrid/data_grid_cell.tsx
@@ -485,6 +485,7 @@ export class EuiDataGridCell extends Component<
       innerContent = (
         <div className="euiDataGridRowCell__content">
           <EuiPopover
+            hasArrow={false}
             anchorClassName="euiDataGridRowCell__expand"
             button={anchorContent}
             isOpen={this.state.popoverIsOpen}

From 6af664a0fb1866fbace3dabe89e66d6d362a81a2 Mon Sep 17 00:00:00 2001
From: Chandler Prall <chandler.prall@gmail.com>
Date: Thu, 30 Jul 2020 11:56:34 -0600
Subject: [PATCH 2/2] changelog

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c505afdec18..1998d6af9dc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 - Removed `pointer-events: none` in both `EuiButton` & `EuiButtonEmpty` to not override the `pointer-events: auto` in the button mixin `euiButtonContentDisabled` ([#3824](https://github.com/elastic/eui/pull/3824))
 - Fixed bug in `EuiPagination` showing wrong page count when `compressed` prop is true. ([#3827](https://github.com/elastic/eui/pull/3827))
 - Fixed bug in EUI's input field components where their `inputRef` couldn't be a `RefObject` ([#3822](https://github.com/elastic/eui/pull/3822))
+- Fixed issue where `EuiDataGrid`'s cell expansion popover would sometimes render as a scrollable element ([#3832](https://github.com/elastic/eui/pull/3832))
 
 ## [`27.3.0`](https://github.com/elastic/eui/tree/v27.3.0)