[Bug]: Version 7.39 and 7.40 - Not working the Mobile SDK/Javascript with these versions (Only works in 7.38)

[gabrielcodingok]

Describe the bug

https://docs.metamask.io/sdk/quickstart/javascript/

<script src="https://c0f4f41c-2f55-4863-921b-sdk-docs.github.io/cdn/metamask-sdk.js"></script>

When trying to connect through mobile device (Android) by using the cdn sdk, the approval connection in the metamask application is not appearing. It works only in version 7.38, so these new updates are having issues with this js sdk. Don't know if this js must be updated or the metamask app must fix the issue. Also I notice in these new versions 7.39 and 7.40, let's say you have to connect to metamask through another app, first it redirects you to a browser, then you have to continue in Metamask. In version 7.38 you directly go to Metamask App in Android and receive the corresponding request to approve.

Expected behavior

Connect through the Metamask SDK Javascript must receive the corresponding request to approve from the Metamask App

Screenshots/Recordings

No response

Steps to reproduce

1. Go to some app using this Metamask SDK Javascript
2. Click on the Connect Button
3. Redirect to a website
4. Then redirects to metamask app
5. Not getting the request

Error messages or log output

Detection stage

In production (default)

Version

7.39 and 7.40

Build type

None

Device

Redmi

Operating system

Android

Additional context

No response

Severity

No response

[flyjeray]

Faced the exact same issue - managed to fix it by switching useDeeplink from false to true in MetaMaskProvider of my React Native app.

<MetaMaskProvider
  sdkOptions={{
    dappMetadata: {
      name: 'App Name',
      url: PublicURL,
    },
    openDeeplink: (link: string, _target?: string) => {
      Linking.openURL(link);
    },
    timer: BackgroundTimer,
    // change this value, if it is set to "false"
    useDeeplink: true,
  }}
>

Approach with useDeeplink: false was working as intended on v7.38.1 of MetaMask App and broke on v7.39.0, as redirect link started opening the app without any additional actions, such as connecting to account and calling for a transaction.

sdk?.connectWith({
  method: 'eth_sendTransaction',
  params: [payload],
})

For me, changing the useDeeplink value fixed redirecting to MetaMask App (tested it on v7.39.0 and v7.40.0), however MetaMask App now does not redirect user back to his app after receiving response (e.g. rejecting the proposed transaction)

[christopherferreira9]

Hi all!
Unfortunately, sending the user back is something we stopped doing as this was introducing some flaky behavior.
The CDN version currently is sitting on 0.26.4, we will be updating it shortly. Since this older version, we started focusing on deeplinks more than using universalLinks so useDeeplink now defaults to true when using the SDK even though you're still able to force it to false and therefore be able to use universalLinks.

Besides all that, I was able to connect via universal links (useDeeplink: false) on 7.40.0

cdn.mov

[gabrielcodingok]

sdk = new MetaMaskSDK.MetaMaskSDK({ logging: { developerMode: true }, dappMetadata: { name: "Application", }, openDeeplink: (link) => { console.log("Opening MetaMask via deeplink:", link); window.open(link, "_blank"); }, useDeeplink: true, });

I was using this but now it is not working on 7.41.0 in Metamask Android @christopherferreira9 @flyjeray Do you have any advice?