diff --git a/src/core/worker.js b/src/core/worker.js
index 4e17925c0..1e9a807ec 100644
--- a/src/core/worker.js
+++ b/src/core/worker.js
@@ -68,7 +68,7 @@ class WorkerTask {
 class WorkerMessageHandler {
   static setup(handler, port) {
     let testMessageProcessed = false;
-    handler.on("test", function wphSetupTest(data) {
+    handler.on("test", function (data) {
       if (testMessageProcessed) {
         return; // we already processed 'test' message once
       }
@@ -78,11 +78,11 @@ class WorkerMessageHandler {
       handler.send("test", data instanceof Uint8Array);
     });
 
-    handler.on("configure", function wphConfigure(data) {
+    handler.on("configure", function (data) {
       setVerbosityLevel(data.verbosity);
     });
 
-    handler.on("GetDocRequest", function wphSetupDoc(data) {
+    handler.on("GetDocRequest", function (data) {
       return WorkerMessageHandler.createDocumentHandler(data, port);
     });
   }
@@ -303,7 +303,7 @@ class WorkerMessageHandler {
         }
         cachedChunks = [];
       };
-      const readPromise = new Promise(function (resolve, reject) {
+      new Promise(function (resolve, reject) {
         const readChunk = function ({ value, done }) {
           try {
             ensureNotTerminated();
@@ -335,8 +335,7 @@ class WorkerMessageHandler {
           }
         };
         fullRequest.read().then(readChunk, reject);
-      });
-      readPromise.catch(function (e) {
+      }).catch(function (e) {
         pdfManagerCapability.reject(e);
         cancelXHRs = null;
       });
@@ -427,7 +426,7 @@ class WorkerMessageHandler {
         .then(pdfManagerReady, onFailure);
     }
 
-    handler.on("GetPage", function wphSetupGetPage(data) {
+    handler.on("GetPage", function (data) {
       return pdfManager.getPage(data.pageIndex).then(function (page) {
         return Promise.all([
           pdfManager.ensure(page, "rotate"),
@@ -445,28 +444,28 @@ class WorkerMessageHandler {
       });
     });
 
-    handler.on("GetPageIndex", function wphSetupGetPageIndex(data) {
+    handler.on("GetPageIndex", function (data) {
       const pageRef = Ref.get(data.num, data.gen);
       return pdfManager.ensureCatalog("getPageIndex", [pageRef]);
     });
 
-    handler.on("GetDestinations", function wphSetupGetDestinations(data) {
+    handler.on("GetDestinations", function (data) {
       return pdfManager.ensureCatalog("destinations");
     });
 
-    handler.on("GetDestination", function wphSetupGetDestination(data) {
+    handler.on("GetDestination", function (data) {
       return pdfManager.ensureCatalog("getDestination", [data.id]);
     });
 
-    handler.on("GetPageLabels", function wphSetupGetPageLabels(data) {
+    handler.on("GetPageLabels", function (data) {
       return pdfManager.ensureCatalog("pageLabels");
     });
 
-    handler.on("GetPageLayout", function wphSetupGetPageLayout(data) {
+    handler.on("GetPageLayout", function (data) {
       return pdfManager.ensureCatalog("pageLayout");
     });
 
-    handler.on("GetPageMode", function wphSetupGetPageMode(data) {
+    handler.on("GetPageMode", function (data) {
       return pdfManager.ensureCatalog("pageMode");
     });
 
@@ -478,15 +477,15 @@ class WorkerMessageHandler {
       return pdfManager.ensureCatalog("openAction");
     });
 
-    handler.on("GetAttachments", function wphSetupGetAttachments(data) {
+    handler.on("GetAttachments", function (data) {
       return pdfManager.ensureCatalog("attachments");
     });
 
-    handler.on("GetJavaScript", function wphSetupGetJavaScript(data) {
+    handler.on("GetJavaScript", function (data) {
       return pdfManager.ensureCatalog("javaScript");
     });
 
-    handler.on("GetDocJSActions", function wphSetupGetDocJSActions(data) {
+    handler.on("GetDocJSActions", function (data) {
       return pdfManager.ensureCatalog("jsActions");
     });
 
@@ -496,7 +495,7 @@ class WorkerMessageHandler {
       });
     });
 
-    handler.on("GetOutline", function wphSetupGetOutline(data) {
+    handler.on("GetOutline", function (data) {
       return pdfManager.ensureCatalog("documentOutline");
     });
 
@@ -508,18 +507,18 @@ class WorkerMessageHandler {
       return pdfManager.ensureCatalog("permissions");
     });
 
-    handler.on("GetMetadata", function wphSetupGetMetadata(data) {
+    handler.on("GetMetadata", function (data) {
       return Promise.all([
         pdfManager.ensureDoc("documentInfo"),
         pdfManager.ensureCatalog("metadata"),
       ]);
     });
 
-    handler.on("GetMarkInfo", function wphSetupGetMarkInfo(data) {
+    handler.on("GetMarkInfo", function (data) {
       return pdfManager.ensureCatalog("markInfo");
     });
 
-    handler.on("GetData", function wphSetupGetData(data) {
+    handler.on("GetData", function (data) {
       return pdfManager.requestLoadedStream().then(function (stream) {
         return stream.bytes;
       });
@@ -694,7 +693,7 @@ class WorkerMessageHandler {
       }
     );
 
-    handler.on("GetOperatorList", function wphSetupRenderPage(data, sink) {
+    handler.on("GetOperatorList", function (data, sink) {
       const pageIndex = data.pageIndex;
       pdfManager.getPage(pageIndex).then(function (page) {
         const task = new WorkerTask(`GetOperatorList: page ${pageIndex}`);
@@ -739,7 +738,7 @@ class WorkerMessageHandler {
       });
     });
 
-    handler.on("GetTextContent", function wphExtractText(data, sink) {
+    handler.on("GetTextContent", function (data, sink) {
       const pageIndex = data.pageIndex;
 
       pdfManager.getPage(pageIndex).then(function (page) {
@@ -783,7 +782,7 @@ class WorkerMessageHandler {
       });
     });
 
-    handler.on("GetStructTree", function wphGetStructTree(data) {
+    handler.on("GetStructTree", function (data) {
       return pdfManager.getPage(data.pageIndex).then(function (page) {
         return pdfManager.ensure(page, "getStructTree");
       });
@@ -793,11 +792,11 @@ class WorkerMessageHandler {
       return pdfManager.fontFallback(data.id, handler);
     });
 
-    handler.on("Cleanup", function wphCleanup(data) {
+    handler.on("Cleanup", function (data) {
       return pdfManager.cleanup(/* manuallyTriggered = */ true);
     });
 
-    handler.on("Terminate", function wphTerminate(data) {
+    handler.on("Terminate", function (data) {
       terminated = true;
 
       const waitOn = [];
@@ -828,7 +827,7 @@ class WorkerMessageHandler {
       });
     });
 
-    handler.on("Ready", function wphReady(data) {
+    handler.on("Ready", function (data) {
       setupDoc(docParams);
       docParams = null; // we don't need docParams anymore -- saving memory.
     });