Context:

I try to write a simple Microsoft Teams tab that displays a feed list. I'm able to side load my tab to Teams and to select it from the Channel "+" menu.

Problem:

If I want to save my settings, an error text appears that says "We couldn't save your tab settings. Please try again." There is no error in my browser's javascript error console.

My config.html tab javascript code:

<script type="text/javascript">
    microsoftTeams.initialize();
    microsoftTeams.settings.registerOnSaveHandler(function (saveEvent) {

        microsoftTeams.settings.setSettings({
            entityId: "example",
            contentUrl: ".html",
            suggestedDisplayName: "example",
            websiteUrl: "",
            removeUrl: ".html"
        });

        saveEvent.notifySuccess();
    });

    function onClick() 
    {
        microsoftTeams.settings.setValidityState(true);
    }
</script>

My manifest.json

{
  "$schema": ".4/manifest/MicrosoftTeams.schema.json",
  "manifestVersion": "0.4",
  "id": "ee90834a-d649-458d-a4e2-0b0f8d425c11",
  "version": "1.0",
  "name": "WINSider Community Deutschland",
  "developer": {
      "name": "WINSider Community Deutschland",   
      "websiteUrl": "",
      "privacyUrl": "/",
      "termsOfUseUrl": "/"
  },
  "tabs" : [{
    "id": "ee90834a-d649-458d-a4e2-0b0f8d425c11",
    "name": "WINSider Community",
    "description" : {
      "short": "WINsider article list as a tab",
      "full": "Summarizes the windowsmunity.de blog posts as a clickable list."
    },
    "icons": {
      "44": "icon44.png",
      "88": "icon88.png"
    },
    "accentColor" : "#37A3CF",
    "configUrl": ".html",
    "canUpdateConfig": true
  }],
  "needsIdentity": false,
  "validDomains": [
      "*.github.io",
      "*.github",
      "*.googleapis",
      "*.microsoft",
      "*.rss2json",
      "*windowsmunity.de"
  ]
}

Context:

I try to write a simple Microsoft Teams tab that displays a feed list. I'm able to side load my tab to Teams and to select it from the Channel "+" menu.

Problem:

If I want to save my settings, an error text appears that says "We couldn't save your tab settings. Please try again." There is no error in my browser's javascript error console.

My config.html tab javascript code:

<script type="text/javascript">
    microsoftTeams.initialize();
    microsoftTeams.settings.registerOnSaveHandler(function (saveEvent) {

        microsoftTeams.settings.setSettings({
            entityId: "example",
            contentUrl: "https://example./tab.html",
            suggestedDisplayName: "example",
            websiteUrl: "https://example.",
            removeUrl: "https://example./remove.html"
        });

        saveEvent.notifySuccess();
    });

    function onClick() 
    {
        microsoftTeams.settings.setValidityState(true);
    }
</script>

My manifest.json

{
  "$schema": "https://statics.teams.microsoft./sdk/v0.4/manifest/MicrosoftTeams.schema.json",
  "manifestVersion": "0.4",
  "id": "ee90834a-d649-458d-a4e2-0b0f8d425c11",
  "version": "1.0",
  "name": "WINSider Community Deutschland",
  "developer": {
      "name": "WINSider Community Deutschland",   
      "websiteUrl": "https://windowsmunity.de",
      "privacyUrl": "https://windowsmunity.de/de/impressum/",
      "termsOfUseUrl": "http://windowsmunity.de/de/impressum/"
  },
  "tabs" : [{
    "id": "ee90834a-d649-458d-a4e2-0b0f8d425c11",
    "name": "WINSider Community",
    "description" : {
      "short": "WINsider article list as a tab",
      "full": "Summarizes the windowsmunity.de blog posts as a clickable list."
    },
    "icons": {
      "44": "icon44.png",
      "88": "icon88.png"
    },
    "accentColor" : "#37A3CF",
    "configUrl": "https://tscholze.github.io/public/teamstab/config.html",
    "canUpdateConfig": true
  }],
  "needsIdentity": false,
  "validDomains": [
      "*.github.io",
      "*.github.",
      "*.googleapis.",
      "*.microsoft.",
      "*.rss2json.",
      "*windowsmunity.de"
  ]
}

• javascript
• microsoft-teams

2 Answers 2

It looks like your contentUrl, websiteUrl, and removeUrl are using domains not in your validDomains list. This will cause the save to fail.

For your information

David posted the answers as a ment to my Github issue. Thank you.

Long story short *example to allow domain calls like http://example and http://www.example is not a valid definition oaf a validDomain.