Preserve behavior from request library

- Bodys sent with HEAD/GET requests should not cause TypeErrors instead
just add a console.warning.

lib/run_action.js

@@ -35,14 +35,19 @@ function runAction(base, method, path, queryParams, bodyData, callback, numAttem
     }
 
     var controller = new AbortController();
+    var normalizedMethod = method.toUpperCase();
     var options = {
-        method: method.toUpperCase(),
+        method: normalizedMethod,
         headers: headers,
         signal: controller.signal,
     };
 
     if (bodyData !== null) {
-        options.body = JSON.stringify(bodyData);
+        if (normalizedMethod === 'GET' || normalizedMethod === 'HEAD') {
+            console.warn('body argument to runAction are ignored with GET or HEAD requests');
+        } else {
+            options.body = JSON.stringify(bodyData);
+        }
     }
 
     var timeout = setTimeout(function() {