Context menu item disappears in converted Safari Web Extension

I'm trying to convert an existing Chrome Extension to Safari Web Extension using this converter.

Immediately after convert, xcode opens and I build the project with my developer certificate. Everything looks perfect in Safari: the popup works fine, the context menu item is there, options are there.

The moment I restart Safari OR rebuild the project (even without changes), the context menu item disappears.

This is how context menu is defined in my context.js script:

Code Block javascript
chrome.runtime.onInstalled.addListener(function() {
    chrome.contextMenus.create({
        "title": chrome.i18n.getMessage("contextMenu"),
        "contexts": ["selection"],
        "id": "context" + "selection"
    });
});
chrome.contextMenus.onClicked.addListener(onClickHandler);

My manifest.json has this:

Code Block json
"permissions": ["activeTab", "storage", "contextMenus"],

I followed these instructions and added this key to info.plist in the folder "ProjectName Extension":

Code Block language
<key>SFSafariContextMenu</key>
            <array>
                <dict>
                    <key>Text</key>
                    <string>Context Menu Text</string>
                    <key>Command</key>
                    <string>commandMenu</string>
                </dict>
            </array>

After rebuilding the project, nothing changed.

Any ideas how to make context menu consistent?

Code Block javascript
chrome.runtime.onInstalled.addListener(function() {

Code Block javascript
chrome.contextMenus.create({        
"title": chrome.i18n.getMessage("contextMenu"),        
"contexts": ["selection"],        
"id": "selection"    
});