List of CORS domains for Office Online - Custom functions not loading
We are continuing to hit validation issues caused by our functions.json not loading due to a CORS issue, even though it works for us with every browser supported by Excel Online.
Support has been mostly unhelpful, sending us here and being unable to supply us with a list of CORS origins to whitelist on our server.
So far we have been able to deduce the following origins:
But even with these whitelisted domains, this is what the Microsoft testing team continues to send us:
We absolutely cannot reproduce the issue. Any help appreciated!
Found the issue - my CDN was caching the Access-Control-Allow-Origin header response regardless of the origin being sent in the request.
Fixed it by duplicating my CORS rules in the CDN as described here: https://learn.microsoft.com/en-us/azure/cdn/cdn-cors#one-regular-expression-with-all-valid-origins
- Is it still not possible to open Excel from a Word Add-In?
- Office JavaScript API: track changes
- Is it possible to get text with line breaks via Word api?
- How can I make my simple PowerPoint Add-In available to other people?
- Content Control getting nested in word
- How to force Microsoft Office Addin to use Edge Webview2 runtime
- How to deploy the outlook add-in project via Teams toolkit
- How to run office add-ins in development on an iPad or other mobile device
- How to remove/delete inserted Yeoman Excel Developer Add-ins?
- Error calling Office.context.mailbox.item.body.getTypeAsync when reading an Outlook message
- Context Menu Add-in Command(Word) [ExtensionPoint xsi:type="ContextMenu"]
- Outlook SSO NAA in pure JS without node.js
- Check if Office.js is loaded outside of Office client
- How to Fix "Office.js is Loaded Outside of Office Client" Warning in Outlook Web
- How to Update Ribbon Layout in Word Web Add-in Using Office.js and Manifest
- Is it possible to have dialogs without address bar when developing for Outlook web?
- How to lock only dedicated cells via Excel JavaScript API
- I can no longer debug Office Add-in from Visual Studio
- Office JS - Add customProperty to new document
- Office Script to format raw data and export to csv
- getRange works when pasting from one sheet to next but not if getRangeByIndex
- Is this possible to add/update ribbon dynamically while runtime in word add-in created with officejs?
- Shared Folder is missing in the Office My Addin ribbon suddenly in Angular Office Addin Project
- Upgrade to Angular 16 break Sharepoint Ads in : this._history.replaceState is not a function
- How to setup Tailwind CSS with a React Microsoft Office Add-in created with Yeoman Generator?
- How to find Merge cell for givenNamedRange(NamedItem)
- Copy PowerPoint shapes using office js to a new slide
- Office-JS & VBA Addin How to mix together
- How do we add field code for Word using word javascript api
- I want to skip showing the message when calling Office.context.ui.displayDialogAsync() method