Update *-page to not include styles if no math is found (simple version)

Author: dpvc

simple/am2chtml-page

@@ -82,6 +82,7 @@ require('mathjax-full').init({
     //
     const adaptor = MathJax.startup.adaptor;
     const html = MathJax.startup.document;
+    if (html.math.toArray().length === 0) adaptor.remove(html.outputJax.chtmlStyles);
     console.log(adaptor.doctype(html.document));
     console.log(adaptor.outerHTML(adaptor.root(html.document)));
 }).catch(err => console.log(err));

simple/mml2chtml-page

@@ -82,6 +82,7 @@ require('mathjax-full').init({
     //
     const adaptor = MathJax.startup.adaptor;
     const html = MathJax.startup.document;
+    if (html.math.toArray().length === 0) adaptor.remove(html.outputJax.chtmlStyles);
     console.log(adaptor.doctype(html.document));
     console.log(adaptor.outerHTML(adaptor.root(html.document)));
 }).catch(err => console.log(err));

simple/mml2svg-page

@@ -82,6 +82,11 @@ require('mathjax-full').init({
     //
     const adaptor = MathJax.startup.adaptor;
     const html = MathJax.startup.document;
+    if (html.math.toArray().length === 0) {
+      adaptor.remove(html.outputJax.svgStyles);
+      const cache = adaptor.elementById(adaptor.body(html.document), 'MJX-SVG-global-cache');
+      if (cache) adaptor.remove(cache);
+    }
     console.log(adaptor.doctype(html.document));
     console.log(adaptor.outerHTML(adaptor.root(html.document)));
 }).catch(err => console.log(err));

simple/tex2chtml-page

@@ -94,6 +94,7 @@ require('mathjax-full').init({
     //
     const adaptor = MathJax.startup.adaptor;
     const html = MathJax.startup.document;
+    if (html.math.toArray().length === 0) adaptor.remove(html.outputJax.chtmlStyles);
     console.log(adaptor.doctype(html.document));
     console.log(adaptor.outerHTML(adaptor.root(html.document)));
 }).catch(err => console.log(err));

simple/tex2svg-page

@@ -94,6 +94,11 @@ require('mathjax-full').init({
     //
     const adaptor = MathJax.startup.adaptor;
     const html = MathJax.startup.document;
+    if (html.math.toArray().length === 0) {
+      adaptor.remove(html.outputJax.svgStyles);
+      const cache = adaptor.elementById(adaptor.body(html.document), 'MJX-SVG-global-cache');
+      if (cache) adaptor.remove(cache);
+    }
     console.log(adaptor.doctype(html.document));
     console.log(adaptor.outerHTML(adaptor.root(html.document)));
 }).catch(err => console.log(err));