SharePoint Online : Access denied when uploading .aspx page to SitePages
By default, SharePoint online does not allow uploading custom .aspx pages to its site pages library.
For people with applications developed on pure react/angular
and want to migrate content to SharePoint Online would be a blocked unless you want to migrate to SPFx.
Resolution:
This can be fixed by running custom scripts from admin
console using the SharePoint Online Management Shell to execute
the script below.
PS Command:
$adminUPN="name@business.com"$userCredential = Get-Credential -UserName $adminUPN -Message "Type the password."
Connect-SPOService -Url https://business-admin.sharepoint.com -Credential $userCredential
After this connection establishment, run the following
script to connect to your site and enable
Set-SPOSite -Identity https://business.sharepoint.com/sites/site1/ -DenyAddAndCustomizePages $false
This should enabled uploading custom files to online site
pages in the SharePoint Online.
If still issues persists, try enabling the allow custom
scripts and try to run the scripts and you can disable it back.
Hope this helps…
Happy Browsing!
Relax..
Relax..