fixes GRADE-2401
test plan:
A. Setup
1. Select or create a typical course
2. Add a SIS LTI
B. Verify in Old Gradebook
1. Ensure New Gradebook is disabled
2. Visit Old Gradebook
3. Click the "Export" button to expand the menu
4. Click the sync button for the LTI
* the Sync Grades modal will open
5. Tab through the entire dialog & iframe
* Start on the close button
* End on the close button
6. Repeat Step 5
7. Verify the iframe remains the same size
C. Verify with New Gradebook
1. Enable New Gradebook
2. Visit New Gradebook
3. Click the "Actions" menu button
4. Click the menu option for either LTI
* the Sync Grades modal will open
5. Tab through the entire dialog & iframe
* Start on the close button
* End on the close button
6. Repeat Step 5
7. Verify the iframe remains the same size
Change-Id: I66adaf5457f307eaa41aec5e984f053b3dc6a7e7
Reviewed-on: https://gerrit.instructure.com/208510
Tested-by: Jenkins
Reviewed-by: Keith Garner <kgarner@instructure.com>
Reviewed-by: Gary Mei <gmei@instructure.com>
QA-Review: Jeremy Neander <jneander@instructure.com>
Product-Review: Keith Garner <kgarner@instructure.com>
c05ba7c0c2