diff --git a/tool.ts b/tool.ts
index 93ec936..cf105a5 100644
--- a/tool.ts
+++ b/tool.ts
@@ -14,7 +14,7 @@ declare let rest;
 
 let pkg = require(path.join(__dirname, 'package.json'));
 let userAgent = 'vsts-task-installer/' + pkg.version;
-let requestOptions = {
+const defaultRequestOptions = {
     // ignoreSslError: true,
     proxy: tl.getHttpProxyConfiguration(),
     cert: tl.getHttpCertConfiguration(),
@@ -198,17 +198,20 @@ export function findLocalToolVersions(toolName: string, arch?: string) {
  * @param fileName           optional fileName.  Should typically not use (will be a guid for reliability). Can pass fileName with an absolute path.
  * @param handlers           optional handlers array.  Auth handlers to pass to the HttpClient for the tool download.
  * @param additionalHeaders  optional custom HTTP headers.  This is passed to the REST client that downloads the tool.
+ * @param requestOptions    optional request options.  This is passed to the REST client that downloads the tool.
  */
 export async function downloadTool(
     url: string,
     fileName?: string,
     handlers?: ifm.IRequestHandler[],
-    additionalHeaders?: ifm.IHeaders
+    additionalHeaders?: ifm.IHeaders,
+    requestOptions?: ifm.IRequestOptions
 ): Promise<string> {
     return new Promise<string>(async (resolve, reject) => {
         try {
             handlers = handlers || null;
-            let http: httpm.HttpClient = new httpm.HttpClient(userAgent, handlers, requestOptions);
+            requestOptions = { ...defaultRequestOptions, ...requestOptions || {} }
+            const http = new httpm.HttpClient(userAgent, handlers, requestOptions);
             tl.debug(fileName);
             fileName = fileName || uuidV4();
 
@@ -471,10 +474,10 @@ export async function extract7z(file: string, dest?: string, _7zPath?: string, o
             }
 
             _7z.arg('x')         // eXtract files with full paths
-               .arg('-bb1')      // -bb[0-3] : set output log level
-               .arg('-bd')       // disable progress indicator
-               .arg('-sccUTF-8') // set charset for for console input/output
-               .arg(file);
+                .arg('-bb1')      // -bb[0-3] : set output log level
+                .arg('-bd')       // disable progress indicator
+                .arg('-sccUTF-8') // set charset for for console input/output
+                .arg(file);
             await _7z.exec();
         }
         else {
@@ -591,7 +594,7 @@ function _createExtractFolder(dest?: string): string {
  */
 export async function scrape(url: string, regex: RegExp, handlers?: ifm.IRequestHandler[]): Promise<string[]> {
     handlers = handlers || null;
-    let http: httpm.HttpClient = new httpm.HttpClient(userAgent, handlers, requestOptions);
+    let http: httpm.HttpClient = new httpm.HttpClient(userAgent, handlers, defaultRequestOptions);
     let output: string = await (await http.get(url)).readBody();
 
     let matches = output.match(regex);