Check lower-cased proxy settings as well

Author: cardil

lib/HttpClient.ts

@@ -125,7 +125,8 @@ export class HttpClient implements ifm.IHttpClient {
     constructor(userAgent: string | null | undefined, handlers?: ifm.IRequestHandler[], requestOptions?: ifm.IRequestOptions) {
         this.userAgent = userAgent;
         this.handlers = handlers || [];
-        let no_proxy: string = process.env[EnvironmentVariables.NO_PROXY];
+        let no_proxy: string = process.env[EnvironmentVariables.NO_PROXY] ??
+            process.env[EnvironmentVariables.NO_PROXY.toLowerCase()];
         if (no_proxy) {
             this._httpProxyBypassHosts = [];
             no_proxy.split(',').forEach(bypass => {
@@ -551,8 +552,10 @@ export class HttpClient implements ifm.IHttpClient {
         let proxyConfig: ifm.IProxyConfiguration = this._httpProxy;
 
         // fallback to http_proxy and https_proxy env
-        let https_proxy: string = process.env[EnvironmentVariables.HTTPS_PROXY];
-        let http_proxy: string = process.env[EnvironmentVariables.HTTP_PROXY];
+        let https_proxy: string = process.env[EnvironmentVariables.HTTPS_PROXY] ??
+            process.env[EnvironmentVariables.HTTPS_PROXY.toLowerCase()];
+        let http_proxy: string = process.env[EnvironmentVariables.HTTP_PROXY] ??
+            process.env[EnvironmentVariables.HTTP_PROXY.toLocaleLowerCase()];
 
         if (!proxyConfig) {
             if (https_proxy && usingSsl) {