fix interpretation of useApi default

app/client/boot.ts

@@ -9,13 +9,16 @@ import { Disposable, dom, Observable, styled, UseCBOwner } from 'grainjs';
 const cssBody = styled('div', `
   padding: 20px;
   overflow: auto;
-  max-width: 500px;
 `);
 
 const cssHeader = styled('div', `
   padding: 20px;
 `);
 
+const cssResult = styled('div', `
+  max-width: 500px;
+`);
+
 /**
  * A "boot" page for inspecting the state of the Grist installation.
  * The page should ideally be visible even if a lot is wrong with the,
@@ -98,7 +101,8 @@ export class Boot extends Disposable {
         ob2.start();
         const result = use(ob);
         const deets = probeDetails[id];
-        return this.buildResult(p0, result, deets);
+        return cssResult(
+          this.buildResult(p0, result, deets));
       }),
     ];
     return cssBody(main);
@@ -107,13 +111,17 @@ export class Boot extends Disposable {
   public buildError() {
     return dom(
       'div',
-      'A diagnostics page is available at:',
-      dom('blockquote', '/boot/GRIST_BOOT_KEY'),
-      'GRIST_BOOT_KEY is an environment variable ',
-      ' set before Grist starts. It should only',
-      ' contain characters that are valid in a URL.',
-      ' It should be a secret, since no authentication is needed',
-      ' To visit the diagnostics page.',
+      dom('p',
+          'A diagnostics page can be made available at:',
+          dom('blockquote', '/boot/GRIST_BOOT_KEY'),
+          'GRIST_BOOT_KEY is an environment variable ',
+          ' set before Grist starts. It should only',
+          ' contain characters that are valid in a URL.',
+          ' It should be a secret, since no authentication is needed',
+          ' To visit the diagnostics page.'),
+      dom('p',
+          'You are seeing this page because either the key is not set,',
+          ' or it is not in the URL.'),
     );
   }
 

app/client/models/AppModel.ts

@@ -177,7 +177,7 @@ export class TopAppModelImpl extends Disposable implements TopAppModel {
     this.productFlavor = getFlavor(window.gristConfig && window.gristConfig.org);
     this._gristConfig = window.gristConfig;
     this._widgets = new AsyncCreate<ICustomWidget[]>(async () => {
-      const widgets = this.options.useApi ? (await this.api.getWidgets()) : [];
+      const widgets = this.options.useApi === false ? [] : await this.api.getWidgets();
       this.customWidgets.set(widgets);
       return widgets;
     });
@@ -187,7 +187,7 @@ export class TopAppModelImpl extends Disposable implements TopAppModel {
     this.autoDispose(subscribe(this.currentSubdomain, (use) => this.initialize()));
     this.plugins = this._gristConfig?.plugins || [];
 
-    if (this.options.useApi) {
+    if (this.options.useApi !== false) {
       this.fetchUsersAndOrgs().catch(reportError);
     }
   }
@@ -247,7 +247,7 @@ export class TopAppModelImpl extends Disposable implements TopAppModel {
   private async _doInitialize() {
     this.appObs.set(null);
     if (this.options.useApi === false) {
-      AppModelImpl.create(this.appObs, this, null, null, {error: 'zing', status: 500});
+      AppModelImpl.create(this.appObs, this, null, null, {error: 'no-api', status: 500});
       return;
     }
     try {

app/server/lib/FlexServer.ts

@@ -488,15 +488,14 @@ export class FlexServer implements GristServer {
     const bootKey = appSettings.section('boot').flag('key').readString({
       envVar: 'GRIST_BOOT_KEY'
     });
-    if (!bootKey) { return; }
     const base = `/boot/${bootKey}`;
     this._probes = new BootProbes(this.app, this, base);
     this.app.get('/boot(/:bootKey/?)?$', async (req, res) => {
-      const goodKey = req.params.bootKey === bootKey;
+      const goodKey = bootKey && req.params.bootKey === bootKey;
       return this._sendAppPage(req, res, {
         path: 'boot.html', status: 200, config: goodKey ? {
         } : {
-          errMessage: 'wo wo',
+          errMessage: 'not-the-key',
         }, tag: 'boot',
       });
     });