fix(prerender): fix prerender error handling

Author: adamdbradley

src/compiler/prerender/prerender-app.ts

@@ -159,7 +159,9 @@ async function runNextPrerenderUrl(config: d.Config, compilerCtx: d.CompilerCtx,
 
     hydrateResults.push(results);
 
-    await writePrerenderDest(config, compilerCtx, outputTarget, results);
+    if (results.diagnostics == null || results.diagnostics.length === 0) {
+      await writePrerenderDest(config, compilerCtx, outputTarget, results);
+    }
 
   } catch (e) {
     // darn, idk, bad news
@@ -176,14 +178,16 @@ async function runNextPrerenderUrl(config: d.Config, compilerCtx: d.CompilerCtx,
 
 
 async function writePrerenderDest(config: d.Config, compilerCtx: d.CompilerCtx, outputTarget: d.OutputTargetWww, results: d.HydrateResults) {
-  // create the full path where this will be saved
-  const filePath = getWritePathFromUrl(config, outputTarget, results.url);
+  if (typeof results.url === 'string' && typeof results.html === 'string') {
+    // create the full path where this will be saved
+    const filePath = getWritePathFromUrl(config, outputTarget, results.url);
 
-  // add the prerender html content it to our collection of
-  // files that need to be saved when we're all ready
-  await compilerCtx.fs.writeFile(filePath, results.html, { useCache: false });
+    // add the prerender html content it to our collection of
+    // files that need to be saved when we're all ready
+    await compilerCtx.fs.writeFile(filePath, results.html, { useCache: false });
 
-  // write the files now
-  // and since we're not using cache it'll free up its memory
-  await compilerCtx.fs.commit();
+    // write the files now
+    // and since we're not using cache it'll free up its memory
+    await compilerCtx.fs.commit();
+  }
 }

src/core/host-snapshot.ts

@@ -36,9 +36,11 @@ export const initHostSnapshot = (domApi: d.DomApi, cmpMeta: d.ComponentMeta, hos
       // but this browser doesn't support it
       // so let's polyfill a few things for the user
 
-      if ((window as any).HTMLElement && !('shadowRoot' in (window as any).HTMLElement.prototype)) {
-        (hostElm as any).shadowRoot = hostElm;
-      }
+      try {
+        if ((window as any).HTMLElement && !('shadowRoot' in (window as any).HTMLElement.prototype)) {
+          (hostElm as any).shadowRoot = hostElm;
+        }
+      } catch (e) {}
     }
   }
 

src/server/platform-server.ts

@@ -1,4 +1,5 @@
 import * as d from '../declarations';
+import { catchError } from '../compiler/util';
 import { createDomApi } from '../renderer/dom-api';
 import { createQueueServer } from './queue-server';
 import { createRendererPatch } from '../renderer/vdom/patch';
@@ -68,8 +69,12 @@ export function createPlatformServer(
   // V8 Context provides an isolated global environment
   config.sys.vm.createContext(compilerCtx, outputTarget, win);
 
-  // execute the global scripts (if there are any)
-  runGlobalScripts();
+  try {
+    // execute the global scripts (if there are any)
+    runGlobalScripts();
+  } catch (e) {
+    catchError(diagnostics, e);
+  }
 
   // internal id increment for unique ids
   let ids = 0;
@@ -308,7 +313,18 @@ export function createPlatformServer(
       return;
     }
 
-    config.sys.vm.runInContext(compilerCtx.appFiles.global, win);
+    if (!win.matchMedia) {
+      win.matchMedia = () => {
+        return { matches: true };
+      };
+    }
+
+    const globalContext = Object.assign(win, {
+      x: compilerCtx,
+      r: Context.resourcesUrl
+    });
+
+    config.sys.vm.runInContext(compilerCtx.appFiles.global, globalContext);
   }
 
   function onError(err: Error, type: RUNTIME_ERROR, elm: d.HostElement, appFailure: boolean) {

src/sys/node/node-dom.ts

@@ -58,4 +58,11 @@ function polyfillJsDom(window: any) {
     };
   }
 
+  if (!window.matchMedia) {
+    window.matchMedia = () => {
+      return { matches: true
+      };
+    };
+  }
+
 }

src/testing/puppeteer/puppeteer-element.ts

@@ -446,7 +446,7 @@ export class E2EElement extends MockElement implements pd.E2EElementInternal {
         return rtn;
       });
 
-    }, this._elmHandle, this._queuedActions);
+    }, this._elmHandle, this._queuedActions as any);
 
     this._queuedActions.length = 0;