> Source: [sk96108](https://support.checkpoint.com/results/sk/sk96108)

# sk96108 - SSL Network Extender fails to launch due to Safari 6.1 and 7 blocking Java plugin 

| Property | Value |
|----------|-------|
| Solution ID | sk96108 |
| Date Created | 2013-10-29 |
| Last Modified | 2024-02-21 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |
| OS | macOS |

## Symptoms

- * In Safari version 6-8, launching SSL Network Extender fails with "`failed to download`", or "`Safari blocks Java plugin`" error.

* Other Mobile Access Blade portal components (such as ESOD, SWS, etc.) fail to work correctly.

* In some scenarios, launching the SSL Network Extender stops to respond at the '`Initializing`' stage without showing any errors.

## Cause

Apple introduced a sandboxing mechanism in these web browsers:

* Safari 6.1 (Mac OS X Mountain Lion - 10.8.5)
* Safari 7 (Mac OS X 10.9 - Mavericks)
* Safari 8 ( Mac OS X Yosemite 10.10.x and MAC OS X 10.12)

The mechanism blocks some core functionality of Java, and as a result the SSL Network Extender and other portal components fail to launch. In MAC OS 10.12, the browser feature "unsafe mode" is not available.

## Solution

This solution requires authentication. Please log in to view the full solution.

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