Download Xhr Failed Visual Studio Code ^new^ May 2026

McAfee Endpoint (ePO) Security offers various endpoint security solutions to managed devices.  This article provides best practices recommendations to ensure smooth interoperability of Netskope Client and McAfee Endpoint Security installed in a managed device.

Recommended Reading

We recommend that you read these articles to gain a better understanding of how Client works and its interoperability with 3rd party apps.

Environment

This best practices and configurations are based on the following product versions.

Interoperability Configuration Requirements

We recommend the following configuration requirement to ensure Netskope Client is able to steer traffic to Netskope cloud and also allow McAfee to process their traffic without any conflicts.

Configurations in McAfee ePO Console

Default policies in McAfee ePO does not introduce restrictions on Netskope Client traffic. However, when creating a new policy ensure that the ports 80 and 443 are enabled and allowed in the McAfee Security Firewall rules.

Note

HTTP/HTTPS traffic (via 80 and 443) is enabled and allowed in default firewall policy

  1. Login to McAfee MVISION ePO.
  2. From the top menu bar, click Policy Catalog.
    img-01-policyCatalog.png
  3. From the Products list, select Endpoint Security Firewall.
    img-02-endpointSecFirewall.png
  4. Client New Policy button.
    img-03-newPolicy-a.png
  5. For the new policy
    img-03-newPolicy.png
    1. Select Category.
    2. Select McAfee Default for Create a policy based on this existing policy option.
    3. Give a Name for the policy and Click OK to complete this step.
  6. In the list of Rules, click the Edit button of the policy that you created.
    img-04-editPolicy-1.png
  7. Under Firewall Rules, expand Web/FTP. In the Remote Port column, ensure that ports 80, 443 are Enabled and Allowed for outbound HTTP/HTTPS traffic.
    img-05-remotePorts.png

    Note

    If the ports are not allowed or enabled, click the Edit button open the Edit Rule page to  select the Allow option listed under Actions and select Enable rule under Status.

  8. Click Save. This process ensures that the Netskope Client can steer traffic from the managed device to Netskope cloud.

Configuration in Netskope Tenant WebUI

In the Netskope tenant WebUI, add McAfee Agent as a certificate pinned app exception and add a set of McAfee URLs as domain exception to the appropriate steering configuration.

Download Xhr Failed Visual Studio Code ^new^ May 2026

Some users resolve this by creating an exclusion folder in Windows Defender and installing VS Code there. 4. Clear VS Code Cache Corrupted local data can interfere with new downloads. Close VS Code.

The most common culprit is a mismatch between your system's proxy settings and VS Code’s internal configuration.

Security software might flag VS Code's connection attempts as suspicious. download xhr failed visual studio code

Change your DNS to a public provider like Google (8.8.8.8 and 8.8.4.4) through your Network and Sharing Center settings. 3. Adjust Firewall and Antivirus Rules

Ensure your operating system's proxy settings are correct or disabled if not needed. VS Code Proxy Support: Open VS Code and press Ctrl + Shift + P . Search for "Preferences: Open User Settings" . Search for "proxy" in the settings bar. Some users resolve this by creating an exclusion

Navigate to Windows Security > Firewall & network protection > Allow an app through firewall . Ensure Code.exe is allowed for both Private and Public networks.

Visual Studio Code "Error while fetching extensions. XHR failed" Close VS Code

Navigate to your local app data folder (usually %AppData%\Code on Windows) and delete the , CachedData , and CachedExtensions folders. 5. Workaround: Manual VSIX Installation

Change from "off" to "on" or "override" .

Interoperability Validation

Netskope Client Functions

Netskope Client is validated to work smoothly with McAfee ePO. To view the validation tests for Netskope Client, see Netskope Client Interoperability

McAfee Functions

McAfee functions were validated by executing the following tasks: