# \[mapp View\] Enabling Microphone Access in WebViewer & Configuring Web Server for HTTPS/SSL **URL:** \ **Category:** HMI & Visualization\ **Tags:** mapp-services, mapp-view, automation-studio\ **Created:** [February 4, 2026, 1:37am UTC](https://community.br-automation.com/t/mapp-view-enabling-microphone-access-in-webviewer-configuring-web-server-for-https-ssl/9995 "2026-02-04T01:37:19Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![jayD](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/jayd/32/1676_2.png) [@jayD](https://community.br-automation.com/u/jayD)\ **Post date:** [February 4, 2026, 1:37am UTC](https://community.br-automation.com/t/mapp-view-enabling-microphone-access-in-webviewer-configuring-web-server-for-https-ssl/9995/1 "2026-02-04T01:37:19Z")
**Hi everyone,** I am currently working on a mapp View project where I need to integrate an AI assistant feature. I have developed a custom HTML file that uses the **Web Speech API** for voice recognition (Speech-to-Text). This HTML file is hosted on the PLC’s internal Web Server (File Device) and displayed using the `WebViewer ` widget in mapp View. \*\*The Problem:\*\*When I open the HTML file directly in a desktop browser (Chrome/Edge) via `http://:port/index.html `, the microphone works perfectly after granting permission. However, when the same page is loaded inside the mapp View **WebViewer** widget on the HMI, the microphone does not respond, and no permission prompt appears. \*\*My Analysis:\*\*I suspect this is due to modern browser security policies (Secure Context), which require **HTTPS** to access sensitive hardware like the microphone. My current Web Server is configured to use the standard **HTTP** protocol. **My Questions:** 1. **HTTPS Configuration:** Could anyone guide me through the correct steps to change the internal Web Server from HTTP to HTTPS in Automation Studio? - I see the “Protocol” setting under _Physical View → CPU → Web Server configuration_, but I am unsure how to correctly set up the **“SSL configuration”** and **“SSL Port Number”** (e.g., port 443 vs 8443). - How do I create and link a self-signed certificate for this purpose within AS? 1. **WebViewer Permissions:** Besides enabling HTTPS, does the `WebViewer ` widget itself require any specific permissions or attributes (like the HTML iframe `allow="microphone" ` attribute) to pass the audio capture capability from the HMI hardware to the embedded webpage? **Environment:** - **Software:** Automation Studio 4.x - **Technology:** mapp View, HTML5, Web Speech API - **Hardware:** B&R PPC / Panel Any advice or screenshots on the SSL configuration steps would be greatly appreciated! Thanks in advance. ---
**Author:** ![kovarj](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/kovarj/32/537_2.png) [@kovarj](https://community.br-automation.com/u/kovarj)\ **Post date:** [February 4, 2026, 6:43am UTC](https://community.br-automation.com/t/mapp-view-enabling-microphone-access-in-webviewer-configuring-web-server-for-https-ssl/9995/2 "2026-02-04T06:43:09Z")
I think you are looking for this [How to configure a secure connection between mappView server and mappView client](https://community.br-automation.com/t/how-to-configure-a-secure-connection-between-mappview-server-and-mappview-client/2983), inside of this arctile is also link to AS Help ---
**Author:** ![jayD](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/jayd/32/1676_2.png) [@jayD](https://community.br-automation.com/u/jayD)\ **Post date:** [February 6, 2026, 1:59am UTC](https://community.br-automation.com/t/mapp-view-enabling-microphone-access-in-webviewer-configuring-web-server-for-https-ssl/9995/3 "2026-02-06T01:59:59Z")
Thank you for the comprehensive guide! It is very helpful for setting up HTTPS for the main mapp View application. However, I have tested this, and unfortunately, it hasn’t resolved the microphone access issue within the **`WebViewer`** widget yet. I believe the issue lies in the architecture of how my HTML file is hosted. **My Analysis:** My custom HTML file ( **`AURA.html`** ) is **not** part of the mapp View project content; it is hosted on the **PLC’s standard Web Server** (configured in _Physical View → CPU → Web Server_), which listens on a different port (e.g., port 81 or 82). Even if I configure the mapp View visualization to run on HTTPS (Port 443), the **`WebViewer`** widget is trying to load the content via HTTP (e.g., **`http://192.168.3.160:82/AURA.html`** ). This creates two problems: 1. **Mixed Content Error:** Modern browsers block HTTP content (the WebViewer) embedded inside an HTTPS page (the main visualization). 2. **Secure Context:** The Web Speech API (Microphone) specifically requires the _origin of the content itself_ to be HTTPS. **My Questions:** 1. Has anyone successfully configured SSL/HTTPS specifically for the **CPU Web Server** (not the mapp View server)? I see the option in the CPU configuration, but I am unsure if it shares the same certificate store or requires a specific setup to serve static HTML files over HTTPS (e.g., on port 8443). 2. Regarding the **`WebViewer`** widget: Does B&R allow us to modify the **`