CODEWITHSUNDEEP
javascriptcorssapui5sap-fiori
Marvin Ingel
Marvin Ingel

Reputation: 21

How to load sapui5 xml fragment in custom library that gets loaded from another app?

We have a custom library for controlls that we use across different sapui5 apps. For js controls this works fine but now im trying to get it work with a xml fragment.

The library is deployed like an app and contains js files that extends sap/ui/base/Object and works fine. We call it from other apps via

sap.ui.loader.config({
    paths: {
        'zfiorilibrary': sLibraryPath
    }
});

then we can access it from controller of the app by loading it as you load any other objects from sapui5 declaring it at the top in sap.ui.define()

now i tried the same with an xml file that is in the library and it wont load and gives me cors error in console. this._oAttachmentsMangerDialog = sap.ui.xmlfragment("library-AttachmentsManager", "zfiorilibrary.fragments.AttachmentsManager", this);

jquery-dbg.js:9325 Access to XMLHttpRequest at 'https://ourserver/sap/bc/ui5_ui5/sap/zfiorilibrary/fragments/AttachmentsManager.fragment.xml' from origin 'http://localhost:8080' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

when i click the url the xml loads fine

we never have cors errors when loading the js files. What can i do to load xml files from the library?

We are using sapui5 version 1.71.x (always the newest 1.71 available)

Upvotes: 0

Views: 76

Answers (1)

Heiko Theißen
Heiko Theißen

Reputation: 16892

Javascript files are loaded through <script> elements which make no-cors requests. They can be loaded from any origin.

By contrast, XML files cannot be loaded through an HTML element (there is no <xml>) but only through an XMLHttpRequest (or an equivalent fetch). These make cors requests. If your cross-origin server does not provide the necessary CORS headers, the browser will issue the error message that you observed.

See this documentation about setting CORS headers with your server.

Upvotes: 0

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