@lwvmobile Sorry for the necroposting and late reply, I had similar issue (magicmirror behind http/socks proxy) and couldn’t find any solutions, so with the help of AI I found the issue why tsocks, http_proxy etc env vars don’t work.

The problem is that MagicMirror overrides the global network layer inside this block using its own new Agent({ connect: { rejectUnauthorized: false } }) constructor whenever self-signed certificates or custom configurations are evaluated [index.js]. This instantly deletes your global proxy settings.

To fix this, merge your proxy dispatcher into MagicMirror’s option generation scheme so it is safely preserved.

Fix that worked for me:

Modify your getRequestOptions() block in /path/to/your/MagicMirror/js/http_fetcher.js to look exactly like this:

getRequestOptions () {
                const headers = {
                        "User-Agent": getUserAgent(),
                        ...this.customHeaders
                };
                
                // 1. Initialize the ProxyAgent using undici
                const { ProxyAgent } = require("undici");
                const proxyDispatcher = new ProxyAgent({ uri: "http://192.168.1.1:1080" });
                
                // 2. Set the default dispatcher to use your proxy
                const options = { 
                        headers,
                        dispatcher: proxyDispatcher 
                };

                if (this.selfSignedCert) {
                        // 3. Merge the proxy configuration if self-signed cert handling is active
                        options.dispatcher = new ProxyAgent({
                                uri: "http://192.168.1.1:1080",
                                connect: {
                                        rejectUnauthorized: false
                                }
                        });
                }

                if (this.auth) {
                        if (this.auth.method === "bearer") {
                                headers.Authorization = `Bearer ${this.auth.pass}`;
                        } else {
                                headers.Authorization = `Basic ${Buffer.from(`${this.auth.user}:${this.auth.pass}`).toString("base64")}`;
                        }
                }

                return options;
        }

IMPORTANT: Modify proxy url to the one you use, instead of “http://192.168.1.1:1080”

It intercepts the raw options configuration object right before MagicMirror wraps it.
If this.selfSignedCert evaluates to true, it swaps out MagicMirror’s isolated base Agent with a ProxyAgent block that handles both the proxy routing and the SSL bypass rules simultaneously [index.js].