[core] Misc of improvements (#13271)

* [core] Misc of improvements

* even better

docs/src/pages/customization/css-in-js/JssRegistry.js

@@ -5,7 +5,7 @@ import { createMuiTheme, MuiThemeProvider } from '@material-ui/core/styles';
 import CssInJs from './CssInJs';
 
 const sheetsRegistry = new SheetsRegistry();
-const theme = createMuiTheme();
+const theme = createMuiTheme({ typography: { useNextVariants: true } });
 
 class JssRegistry extends React.Component {
   state = {

docs/src/pages/customization/overrides/overrides.md

@@ -2,11 +2,11 @@
 
 <p class="description">As components can be used in different contexts, Material-UI supports different types of customization requirements going from the most specific to the most generic.</p>
 
-1. [Specific variation for a one-time situation](#1-specific-variation-for-a-one-time-situation)
-1. [Dynamic variation for a one-time situation](#2-dynamic-variation-for-a-one-time-situation)
-1. [Specific variation of a component](#3-specific-variation-of-a-component) re-used in different contexts
-1. [Material Design variations](#4-material-design-variations) such as with the button component
-1. [Global theme variation](#5-global-theme-variation)
+1. [Specific variation for a one-time situation](#1--specific-variation-for-a-one-time-situation)
+1. [Dynamic variation for a one-time situation](#2--dynamic-variation-for-a-one-time-situation)
+1. [Specific variation of a component](#3--specific-variation-of-a-component) re-used in different contexts
+1. [Material Design variations](#4--material-design-variations) such as with the button component
+1. [Global theme variation](#5--global-theme-variation)
 
 ## 1. Specific variation for a one-time situation
 

docs/src/pages/demos/text-fields/CustomizedInputs.js

@@ -67,6 +67,7 @@ const theme = createMuiTheme({
   palette: {
     primary: green,
   },
+  typography: { useNextVariants: true },
 });
 
 function CustomizedInputs(props) {

docs/src/pages/getting-started/supported-platforms/supported-platforms.md

@@ -8,9 +8,13 @@ Material-UI supports the latest, stable releases of all major browsers and platf
 We also support Internet Explorer 11.
 You don't need to provide any JavaScript polyfill as we manage unsupported browser features internally and in isolation.
 
-| IE    | Edge   | Firefox | Chrome | Safari |
-|:------|:-------|:--------|:-------|:-------|
-| 11    | >= 14  | >= 52   | >= 49  | >= 10  |
+| IE    | Edge   | Firefox | Chrome | Safari | Googlebot |
+|:------|:-------|:--------|:-------|:-------|:----------|
+| 11    | >= 14  | >= 52   | >= 49  | >= 10  | ✅        |
+
+Because Googlebot uses a web rendering service (WRS) to index the page content, it's critical that Material-UI supports it.
+[WRS is based on Chrome 41](https://developers.google.com/search/docs/guides/rendering).
+You can expect Material-UI's components to render without major issues.
 
 ## Server
 

docs/src/pages/versions/LatestVersion.js

@@ -30,7 +30,12 @@ function LatestVersion(props) {
             <TableCell padding="dense">
               <Typography
                 component={props2 => (
-                  <Link {...props2} variant="secondary" href="https://material-ui.netlify.com/" />
+                  <Link
+                    {...props2}
+                    variant="secondary"
+                    rel="nofollow"
+                    href="https://material-ui.netlify.com/"
+                  />
                 )}
               >
                 Documentation

docs/src/pages/versions/StableVersions.js

@@ -90,7 +90,9 @@ class StableVersions extends React.Component {
                   </TableCell>
                   <TableCell padding="dense">
                     <Typography
-                      component={props2 => <Link {...props2} variant="secondary" href={doc.url} />}
+                      component={props2 => (
+                        <Link {...props2} variant="secondary" rel="nofollow" href={doc.url} />
+                      )}
                     >
                       Documentation
                     </Typography>

docs/static/robots.txt

@@ -0,0 +1,2 @@
+User-agent: *
+Allow: /

package.json

@@ -18,7 +18,7 @@
   "bugs": {
     "url": "https://github.com/mui-org/material-ui/issues"
   },
-  "homepage": "http://material-ui.com/",
+  "homepage": "https://material-ui.com/",
   "scripts": {
     "start": "yarn docs:dev",
     "docs:dev": "rimraf node_modules/.cache/babel-loader && cross-env BABEL_ENV=docs-development next dev",
@@ -28,7 +28,7 @@
     "docs:icons": "rimraf static/icons/* && babel-node ./docs/scripts/buildIcons.js",
     "docs:build": "cross-env NODE_ENV=production BABEL_ENV=docs-production next build",
     "docs:start": "next start",
-    "docs:export": "next export -o docs/export && yarn docs:build-sw && cp docs/_headers docs/export/_headers && cp docs/_redirects docs/export/_redirects",
+    "docs:export": "next export -o docs/export && yarn docs:build-sw && cp -r docs/static/. docs/export",
     "docs:size-why": "DOCS_STATS_ENABLED=true yarn docs:build",
     "docs:build-sw": "babel-node ./docs/scripts/buildServiceWorker.js",
     "docs:deploy": "git push material-ui-docs master:latest",

packages/material-ui/package.json

@@ -18,7 +18,7 @@
   "bugs": {
     "url": "https://github.com/mui-org/material-ui/issues"
   },
-  "homepage": "http://material-ui.com/",
+  "homepage": "https://material-ui.com/",
   "scripts": {
     "prebuild": "rimraf build",
     "build:es2015": "cross-env NODE_ENV=production babel --config-file ../../babel.config.js ./src --out-dir ./build --ignore *.test.js",

pages/index.js

@@ -150,7 +150,7 @@ class HomePage extends React.Component {
   "@context": "http://schema.org",
   "@type": "Organization",
   "name": "Material-UI",
-  "url": "https://material-ui.com",
+  "url": "https://material-ui.com/",
   "logo": "https://material-ui.com/static/brand.png",
   "sameAs": [
     "https://twitter.com/materialUI",