Ignition perspective Audio component with no WEB dev module

[pturmel]

The file needs to be in your gateway. WebDev is the IA supported way to serve a file on a gateway to a Perspective client component.

If you can store the file as a blob in a database, you could serve it to clients with my free Blob Server 3rd party module. Read the whole topic:

Automation Professionals' Blob Server Module

Automation Professionals is pleased to announce an alpha release of its new Blob Server Module. Available only for Ignition v8.1, here. The Blob Server Module provides a simple way to deliver images, PDF files, or other binary content from a database to your Perspective clients or other web applications. Without needing the WebDev module. All you need is a Named Query that has appropriate security settings and returns a single row with two columns: Content, and ContentType. Modest documentati…

@dillon

the file:// url prefix to load a local file?

You cannot. This is the holy grail of web malware, and is blocked by all modern browsers.

Finally, you can put a reverse proxy web server in front of Ignition, and configure that web server to directly handle desired static files. (Commonly done anyways when exposing Ignition via HTTPS on the public internet.)