Update for Elasticlunr

9 files changed, 33 insertions, 20 deletions

diff --git a/package_abridge.js b/package_abridge.js
index 30a55e5..879c050 100644
--- a/package_abridge.js
+++ b/package_abridge.js
@@ -225,7 +225,7 @@ async function abridge() {
     minify(['static/js/theme_light.js']);
     // Something went wrong with minifying katexbundle, so commenting this out for now
     // minify(['static/js/katex.min.js','static/js/mathtex-script-type.min.js','static/js/katex-auto-render.min.js','static/js/katexoptions.js'],'static/js/katexbundle.min.js');
-    minify(['static/js/elasticlunr.min.js', 'static/js/elasticlunr_bridge.js', 'static/js/search.js'], 'static/js/search_elasticlunr.min.js');
+    minify(['static/js/elasticlunr_scope_begin.js', 'static/js/elasticlunr.min.js', 'static/js/elasticlunr_bridge.js', 'static/js/search.js', 'static/js/elasticlunr_scope_end.js'], 'static/js/search_elasticlunr.min.js');
     minify(['static/js/tinysearch.js'], 'static/js/search_tinysearch.min.js');
     minify(['static/js/prestyle.js', 'static/js/theme_button.js', 'static/js/email.js', 'static/js/codecopy.js', 'static/js/sw_load.js'], 'static/js/abridge_nosearch.min.js');
     minify(['static/js/prestyle.js', 'static/js/theme_button.js', 'static/js/email.js', 'static/js/codecopy.js'], 'static/js/abridge_nosearch_nopwa.min.js');
@@ -328,18 +328,24 @@ function bundle(bpath, js_prestyle, js_switcher, js_email_encode, js_copycode, s
   if (search_library) {
     if ((search_library === 'offline' || (search_library === 'elasticlunrjava' && uglyurls === true))) {
       minify_files.push('public/search_index.en.js');
+      minify_files.push(path.join(bpath, 'static/js/elasticlunr_scope_begin.js'));
       minify_files.push(path.join(bpath, 'static/js/elasticlunr.min.js'));
-      minify_files.push(path.join(bpath, 'static/js/elasticlunr_bridge.js'));// capture elasticlunr, drop window globals
+      minify_files.push(path.join(bpath, 'static/js/elasticlunr_bridge.js'));
       minify_files.push(path.join(bpath, 'static/js/searchjavaugly.js'));
+      minify_files.push(path.join(bpath, 'static/js/elasticlunr_scope_end.js'));
     } else if (search_library === 'elasticlunrjava') {
       minify_files.push('public/search_index.en.js');
+      minify_files.push(path.join(bpath, 'static/js/elasticlunr_scope_begin.js'));
       minify_files.push(path.join(bpath, 'static/js/elasticlunr.min.js'));
-      minify_files.push(path.join(bpath, 'static/js/elasticlunr_bridge.js'));// capture elasticlunr, drop window globals
+      minify_files.push(path.join(bpath, 'static/js/elasticlunr_bridge.js'));
       minify_files.push(path.join(bpath, 'static/js/searchjava.js'));
+      minify_files.push(path.join(bpath, 'static/js/elasticlunr_scope_end.js'));
     } else if (search_library === 'elasticlunr') {//abridge default
+      minify_files.push(path.join(bpath, 'static/js/elasticlunr_scope_begin.js'));
       minify_files.push(path.join(bpath, 'static/js/elasticlunr.min.js'));
-      minify_files.push(path.join(bpath, 'static/js/elasticlunr_bridge.js'));// capture elasticlunr, drop window globals
+      minify_files.push(path.join(bpath, 'static/js/elasticlunr_bridge.js'));
       minify_files.push(path.join(bpath, 'static/js/search.js'));
+      minify_files.push(path.join(bpath, 'static/js/elasticlunr_scope_end.js'));
     } else if (search_library === 'pagefind') {
       minify_files.push(path.join(__dirname, 'static/js/pagefind_search.js'));
     } else if (search_library === 'tinysearch') {
@@ -378,7 +384,16 @@ function minify(fileA, outfile) {
     return fs.readFileSync(file, 'utf8');
   });
 
-  result = UglifyJS.minify(filesContents, options);
+  // Join into one source unit. Uglify parses each array entry as a separate file, so an
+  // IIFE split across elasticlunr_scope_begin.js / … / elasticlunr_scope_end.js would fail.
+  var combined = filesContents.join('\n');
+  result = UglifyJS.minify(combined, options);
+  if (result.error) {
+    throw new Error('UglifyJS failed for ' + outfile + ': ' + result.error);
+  }
+  if (typeof result.code !== 'string') {
+    throw new Error('UglifyJS produced no code for ' + outfile);
+  }
   fs.writeFileSync(outfile, result.code);
 
 }
diff --git a/static/js/abridge.min.js b/static/js/abridge.min.js
index d08d4c5..37c0efa 100644
--- a/static/js/abridge.min.js
+++ b/static/js/abridge.min.js
@@ -1 +1 @@
-let items=document.querySelectorAll(".preStyle"),changeIcon=(items.forEach(e=>{e.rel="stylesheet"}),document.getElementById("mode")&&document.getElementById("mode").addEventListener("click",()=>{document.documentElement.classList.toggle("switch"),localStorage.setItem("theme",document.documentElement.classList.contains("switch")?"switch":"default")}),(()=>{for(var e=document.getElementsByClassName("m-protected"),t=0;t<e.length;t++){var n=e[t].getAttribute("href"),n=atob(n.substring(1));e[t].href="mailto:"+n}})(),(e,t)=>{e.classList.add(t),setTimeout(()=>e.classList.remove(t),2500)}),copyCodeAndChangeIcon=async(t,e)=>{e=getCodeContent(e);try{await navigator.clipboard.writeText(e),changeIcon(t,"yes")}catch(e){changeIcon(t,"err")}},getCodeContent=e=>[...e.querySelectorAll(".giallo-l")].map(e=>{var e=e.cloneNode(!0),t=e.querySelector(".giallo-ln");return t&&t.remove(),e.textContent}).join("\n");document.querySelectorAll("pre").forEach(e=>{let t=document.createElement("div");t.className="cc svgs svgh copy",t.innerHTML=" ",e.prepend(t),t.addEventListener("click",()=>copyCodeAndChangeIcon(t,e))}),function(){function g(e){var t=new g.Index;return t.pipeline.add(g.trimmer,g.stopWordFilter,g.stemmer),e&&e.call(t,t),t}g.version="0.9.5";var l,c,e,t,d,h,f,p,m,v,y,S,x,w,b,I,E,C,D,F,k,L,_,N,n,u=g;(g.utils={}).warn=(n=this,function(e){n.console}),g.utils.toString=function(e){return null==e?"":e.toString()},(g.EventEmitter=function(){this.events={}}).prototype.addListener=function(){var e=[].slice.call(arguments),t=e.pop();if("function"!=typeof t)throw new TypeError("last argument must be a function");e.forEach(function(e){this.hasHandler(e)||(this.events[e]=[]),this.events[e].push(t)},this)},g.EventEmitter.prototype.removeListener=function(e,t){this.hasHandler(e)&&-1!=(t=this.events[e].indexOf(t))&&(this.events[e].splice(t,1),0==this.events[e].length)&&delete this.events[e]},g.EventEmitter.prototype.emit=function(e){var t;this.hasHandler(e)&&(t=[].slice.call(arguments,1),this.events[e].forEach(function(e){e.apply(void 0,t)},this))},g.EventEmitter.prototype.hasHandler=function(e){return e in this.events},(g.tokenizer=function(e){var t,n;return arguments.length&&null!=e?Array.isArray(e)?(t=(t=e.filter(function(e){return null!=e})).map(function(e){return g.utils.toString(e).toLowerCase()}),n=[],t.forEach(function(e){e=e.split(g.tokenizer.seperator);n=n.concat(e)},this),n):e.toString().trim().toLowerCase().split(g.tokenizer.seperator):[]}).defaultSeperator=/[\s\-]+/,g.tokenizer.seperator=g.tokenizer.defaultSeperator,g.tokenizer.setSeperator=function(e){null!=e&&"object"==typeof e&&(g.tokenizer.seperator=e)},g.tokenizer.resetSeperator=function(){g.tokenizer.seperator=g.tokenizer.defaultSeperator},g.tokenizer.getSeperator=function(){return g.tokenizer.seperator},(g.Pipeline=function(){this._queue=[]}).registeredFunctions={},g.Pipeline.registerFunction=function(e,t){t in g.Pipeline.registeredFunctions&&g.utils.warn("Overwriting existing registered function: "+t),e.label=t,g.Pipeline.registeredFunctions[t]=e},g.Pipeline.getRegisteredFunction=function(e){return e in g.Pipeline.registeredFunctions!=1?null:g.Pipeline.registeredFunctions[e]},g.Pipeline.warnIfFunctionNotRegistered=function(e){e.label&&e.label in this.registeredFunctions||g.utils.warn("Function is not registered with pipeline. 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diff --git a/static/js/abridge_nopwa.min.js b/static/js/abridge_nopwa.min.js
index 5ef862f..919335a 100644
--- a/static/js/abridge_nopwa.min.js
+++ b/static/js/abridge_nopwa.min.js
@@ -1 +1 @@
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Error("token should not be undefined");return e.replace(/^\W+/,"").replace(/\W+$/,"")},"trimmer"),(g.InvertedIndex=function(){this.root={docs:{},df:0}}).load=function(e){var t=new this;return t.root=e.root,t},g.InvertedIndex.prototype.addToken=function(e,t,n){for(var n=n||this.root,o=0;o<=e.length-1;){var i=e[o];i in n||(n[i]={docs:{},df:0}),o+=1,n=n[i]}var r=t.ref;n.docs[r]?n.docs[r]={tf:t.tf}:(n.docs[r]={tf:t.tf},n.df+=1)},g.InvertedIndex.prototype.hasToken=function(e){if(!e)return!1;for(var t=this.root,n=0;n<e.length;n++){if(!t[e[n]])return!1;t=t[e[n]]}return!0},g.InvertedIndex.prototype.getNode=function(e){if(!e)return null;for(var t=this.root,n=0;n<e.length;n++){if(!t[e[n]])return null;t=t[e[n]]}return t},g.InvertedIndex.prototype.getDocs=function(e){e=this.getNode(e);return null==e?{}:e.docs},g.InvertedIndex.prototype.getTermFrequency=function(e,t){e=this.getNode(e);return null!=e&&t in e.docs?e.docs[t].tf:0},g.InvertedIndex.prototype.getDocFreq=function(e){e=this.getNode(e);return null==e?0:e.df},g.InvertedIndex.prototype.removeToken=function(e,t){e&&null!=(e=this.getNode(e))&&t in e.docs&&(delete e.docs[t],--e.df)},g.InvertedIndex.prototype.expandToken=function(e,t,n){if(null==e||""==e)return[];t=t||[];if(null!=n||null!=(n=this.getNode(e)))for(var o in 0<n.df&&t.push(e),n)"docs"!==o&&"df"!==o&&this.expandToken(e+o,t,n[o]);return t},g.InvertedIndex.prototype.toJSON=function(){return{root:this.root}},(g.Configuration=function(e,t){var n,e=e||"";if(null==t)throw Error("fields should not be null");this.config={};try{n=JSON.parse(e),this.buildUserConfig(n,t)}catch(e){g.utils.warn("user configuration parse failed, will use default configuration"),this.buildDefaultConfig(t)}}).prototype.buildDefaultConfig=function(e){this.reset(),e.forEach(function(e){this.config[e]={boost:1,bool:"OR",expand:!1}},this)},g.Configuration.prototype.buildUserConfig=function(e,t){var n,o,i="OR",r=!1;if(this.reset(),"bool"in e&&(i=e.bool||i),"expand"in e&&(r=e.expand||r),"fields"in e)for(var s in e.fields)~t.indexOf(s)?(o=r,null!=(n=e.fields[s]).expand&&(o=n.expand),this.config[s]={boost:n.boost||0===n.boost?n.boost:1,bool:n.bool||i,expand:o}):g.utils.warn("field name in user configuration not found in index instance fields");else this.addAllFields2UserConfig(i,r,t)},g.Configuration.prototype.addAllFields2UserConfig=function(t,n,e){e.forEach(function(e){this.config[e]={boost:1,bool:t,expand:n}},this)},g.Configuration.prototype.get=function(){return this.config},g.Configuration.prototype.reset=function(){this.config={}},a.SortedSet=function(){this.length=0,this.elements=[]},a.SortedSet.load=function(e){var t=new this;return t.elements=e,t.length=e.length,t},a.SortedSet.prototype.add=function(){for(var e,t=0;t<arguments.length;t++)~this.indexOf(e=arguments[t])||this.elements.splice(this.locationFor(e),0,e);this.length=this.elements.length},a.SortedSet.prototype.toArray=function(){return this.elements.slice()},a.SortedSet.prototype.map=function(e,t){return this.elements.map(e,t)},a.SortedSet.prototype.forEach=function(e,t){return this.elements.forEach(e,t)},a.SortedSet.prototype.indexOf=function(e){for(var t=0,n=this.elements.length,o=n-t,i=t+Math.floor(o/2),r=this.elements[i];1<o;){if(r===e)return i;r<e&&(t=i),e<r&&(n=i),r=this.elements[i=t+Math.floor((o=n-t)/2)]}return r===e?i:-1},a.SortedSet.prototype.locationFor=function(e){for(var t=0,n=this.elements.length,o=n-t,i=t+Math.floor(o/2),r=this.elements[i];1<o;)r<e&&(t=i),e<r&&(n=i),r=this.elements[i=t+Math.floor((o=n-t)/2)];return e<r?i:r<e?i+1:void 0},a.SortedSet.prototype.intersect=function(e){for(var t=new a.SortedSet,n=0,o=0,i=this.length,r=e.length,s=this.elements,u=e.elements;i-1>=n&&r-1>=o;)s[n]!==u[o]?s[n]<u[o]?n++:s[n]>u[o]&&o++:(t.add(s[n]),n++,o++);return t},a.SortedSet.prototype.clone=function(){var e=new a.SortedSet;return e.elements=this.toArray(),e.length=e.elements.length,e},a.SortedSet.prototype.union=function(e){for(var t,e=this.length<e.length?(t=e,this):(t=this,e),n=t.clone(),o=0,i=e.toArray();o<i.length;o++)n.add(i[o]);return n},a.SortedSet.prototype.toJSON=function(){return this.toArray()},t=this,e=function(){return g},"function"==typeof define&&define.amd?define(e):"object"==typeof exports?module.exports=g:t.elasticlunr=g}();var b=window.elasticlunr;try{delete window.elasticlunr}catch(e){}window.lunr=b,document.addEventListener("DOMContentLoaded",function(){try{delete window.lunr}catch(e){}}),window.onload=function(){function e(){var e=document.querySelector("main"),t=(window.main||(window.main=e.innerHTML),document.getElementById("suggestions")),n=t.cloneNode(!0),o=(n.id="results",document.createElement("div")),i='<form name="closeSearch"><h2><button type="submit" title="Close Search"><i class="svgs x"></i></button> <i class="svgs search"></i> '.concat(document.getElementById("searchinput").value,"</h2></form>");return o.innerHTML=i,n.insertBefore(o,n.firstChild),e.innerHTML=n.outerHTML,t.innerHTML="",document.getElementById("searchinput").value="",document.body.contains(document.closeSearch)&&(document.closeSearch.onsubmit=function(){document.querySelector("main").innerHTML=window.main}),!1}function w(e){return[0,1,2,3,4][Math.ceil(parseInt(e,16).toString(2).length/8)]}var u,r,l,c,h;document.body.contains(document.goSearch)&&(document.goSearch.onsubmit=function(){return goSearchNow()},u=document.getElementById("suggestions"),r=document.getElementById("searchinput"),document.addEventListener("keydown",function(t){if(191===t.keyCode&&"INPUT"!==document.activeElement.tagName&&"TEXTAREA"!==document.activeElement.tagName&&(t.preventDefault(),r.focus(),u.classList.remove("d-none")),27===t.keyCode){r.blur(),u.classList.add("d-none");for(var e=document.getElementById("suggestions");e.firstChild;)e.removeChild(e.firstChild)}var n=u.querySelectorAll("a");if(!u.classList.contains("d-none")&&0!==n.length){var o=[...n],i=o.indexOf(document.activeElement);let e=0;38===t.keyCode?(t.preventDefault(),n[e=0<i?i-1:0].focus()):40===t.keyCode&&(t.preventDefault(),n[e=1+i<o.length?1+i:i].focus())}}),document.addEventListener("click",function(e){u.contains(e.target)||u.classList.add("d-none")}),c=document.documentElement.getAttribute("lang").substring(0,2),"/"==(h=document.querySelector("meta[name='base']").getAttribute("content")).slice(-1)&&(h=h.slice(0,-1)),r.addEventListener("input",async function(){var n,e=this.value.trim(),o=(await(l=void 0===l?fetch(h+"/search_index."+c+".json").then(async function(e){return b.Index.load(await e.json())}):l)).search(e,{bool:"OR",fields:{title:{boost:2},body:{boost:1}}}),i=u.childNodes,r=o.length,s=e.split(/\s+/);for(u.classList.remove("d-none"),o.forEach(function(e){""!==e.doc.body&&((n=document.createElement("div")).innerHTML="<a href><span></span><span></span></a>",a=n.querySelector("a"),t=n.querySelector("span:first-child"),d=n.querySelector("span:nth-child(2)"),a.href=e.ref,t.textContent=e.doc.title,d.innerHTML=((e,t)=>{var n=t.map(function(e){return b.stemmer(e.toLowerCase())}),o=!1,i=0,r=[],s=e.toLowerCase().split(". ");for(p in s){var u,a=s[p].split(/[\s\n]/),l=8;for(u in a){if(0<(v=a[u]).length){for(var c in n)b.stemmer(v).startsWith(n[c])&&(l=40,o=!0);r.push([v,l,i]),l=2}i=i+v.length+1}i+=1}if(0===r.length)return void 0!==e.length&&300<e.length?e.substring(0,300)+"...":e;for(var d=[],h=Math.min(r.length,30),f=0,p=0;p<h;p++)f+=r[p][1];for(d.push(f),p=0;p<r.length-h;p++)f=(f-=r[p][1])+r[p+h][1],d.push(f);var m=0;if(o)for(var g=0,p=d.length-1;0<=p;p--)g<d[p]&&(g=d[p],m=p);for(var v,y,S=[],x=r[m][2],p=m;p<m+h;p++){x<(v=r[p])[2]&&(S.push(e.substring(x,v[2])),x=v[2]),40===v[1]&&S.push("<mark>"),x=v[2]+v[0].length;40===v[1]||v[0].length<12||/^[\x00-\xff]+$/.test(v[0])?S.push(e.substring(v[2],x)):(y=((e,t)=>{for(var n="",o=!1,i=0,r=0,s=0,u=0;u<e.length;u++){var a=e.codePointAt(u).toString(16);if(o=4<a.length&&++u+1<e.length?"200d"==e.codePointAt(u+1).toString(16):o){if(i+=w(a),u==e.length-1){if(t<(r+=i))break;n+=e.substr(s,u-s+1)}}else if(0!=i){if(r=(r+=i)+w(a),t<r)break;n+=e.substr(s,u-s+1),s=u+1,i=0}else{if(r+=w(a),t<r)break;4<a.length?n+=e[u-1]+e[u]:n+=e[u],s=u+1}}return n})(e.substring(v[2],x),12),S.push(y)),40===v[1]&&S.push("</mark>")}return S.push("…"),S.join("")})(e.doc.body,s),u.appendChild(n))});i.length>r;)u.removeChild(i[0])},!0),u.addEventListener("click",function(){for(;u.lastChild;)u.removeChild(u.lastChild);return!1},!0),document.goSearch.onsubmit=e)}})();
\ No newline at end of file
diff --git a/static/js/elasticlunr_bridge.js b/static/js/elasticlunr_bridge.js
index e2ff7ae..c20bc6a 100644
--- a/static/js/elasticlunr_bridge.js
+++ b/static/js/elasticlunr_bridge.js
@@ -1,17 +1,11 @@
-// Include immediately after elasticlunr.min.js in the JS bundle.
-//
-// elasticlunr's UMD assigns window.elasticlunr. Keep a local binding for search.js
-// in this same bundle, and expose window.lunr only long enough for optional
-// on-demand language packs (lunr.stemmer.support.min.js, lunr.fr.min.js, …).
-// Those scripts mutate the same object; after they run we drop the global name.
+// Runs inside the IIFE opened by elasticlunr_scope_begin.js, after elasticlunr.min.js.
+// Capture the UMD export, drop window.elasticlunr, keep a temporary window.lunr for
+// on-demand language packs (stemmer.support, lunr.fr, …), then remove lunr after load.
 var elasticlunr = window.elasticlunr;
 try { delete window.elasticlunr; } catch (e) {}
 window.lunr = elasticlunr;
 
-// head_js loads language scripts with defer, after this bundle. Deferred scripts
-// run in document order before DOMContentLoaded, so stemmer/lang packs attach
-// first; then we remove the temporary global. Local `elasticlunr` still has
-// stemmerSupport / language plugins for search.
+// Language scripts use defer and run before DOMContentLoaded, in document order.
 document.addEventListener("DOMContentLoaded", function () {
   try { delete window.lunr; } catch (e) {}
 });
diff --git a/static/js/elasticlunr_scope_begin.js b/static/js/elasticlunr_scope_begin.js
new file mode 100644
index 0000000..cb58eee
--- /dev/null
+++ b/static/js/elasticlunr_scope_begin.js
@@ -0,0 +1,3 @@
+// Opens an IIFE so elasticlunr + search stay off the real window object.
+// (Top-level `var` in a classic script becomes a non-deletable window property.)
+(function () {
diff --git a/static/js/elasticlunr_scope_end.js b/static/js/elasticlunr_scope_end.js
new file mode 100644
index 0000000..9184a8b
--- /dev/null
+++ b/static/js/elasticlunr_scope_end.js
@@ -0,0 +1 @@
+})(); // closes elasticlunr_scope_begin.js
diff --git a/static/js/search_elasticlunr.min.js b/static/js/search_elasticlunr.min.js
index e3ae3a8..60735b3 100644
--- a/static/js/search_elasticlunr.min.js
+++ b/static/js/search_elasticlunr.min.js
@@ -1 +1 @@
-!function(){function g(e){var t=new g.Index;return t.pipeline.add(g.trimmer,g.stopWordFilter,g.stemmer),e&&e.call(t,t),t}g.version="0.9.5";var l,c,e,t,d,h,f,p,m,v,y,S,x,w,b,I,E,D,F,C,k,_,L,N,n,a=g;(g.utils={}).warn=(n=this,function(e){n.console}),g.utils.toString=function(e){return null==e?"":e.toString()},(g.EventEmitter=function(){this.events={}}).prototype.addListener=function(){var e=[].slice.call(arguments),t=e.pop();if("function"!=typeof t)throw new TypeError("last argument must be a function");e.forEach(function(e){this.hasHandler(e)||(this.events[e]=[]),this.events[e].push(t)},this)},g.EventEmitter.prototype.removeListener=function(e,t){this.hasHandler(e)&&-1!=(t=this.events[e].indexOf(t))&&(this.events[e].splice(t,1),0==this.events[e].length)&&delete this.events[e]},g.EventEmitter.prototype.emit=function(e){var t;this.hasHandler(e)&&(t=[].slice.call(arguments,1),this.events[e].forEach(function(e){e.apply(void 0,t)},this))},g.EventEmitter.prototype.hasHandler=function(e){return e in this.events},(g.tokenizer=function(e){var t,n;return arguments.length&&null!=e?Array.isArray(e)?(t=(t=e.filter(function(e){return null!=e})).map(function(e){return g.utils.toString(e).toLowerCase()}),n=[],t.forEach(function(e){e=e.split(g.tokenizer.seperator);n=n.concat(e)},this),n):e.toString().trim().toLowerCase().split(g.tokenizer.seperator):[]}).defaultSeperator=/[\s\-]+/,g.tokenizer.seperator=g.tokenizer.defaultSeperator,g.tokenizer.setSeperator=function(e){null!=e&&"object"==typeof e&&(g.tokenizer.seperator=e)},g.tokenizer.resetSeperator=function(){g.tokenizer.seperator=g.tokenizer.defaultSeperator},g.tokenizer.getSeperator=function(){return g.tokenizer.seperator},(g.Pipeline=function(){this._queue=[]}).registeredFunctions={},g.Pipeline.registerFunction=function(e,t){t in g.Pipeline.registeredFunctions&&g.utils.warn("Overwriting existing registered function: "+t),e.label=t,g.Pipeline.registeredFunctions[t]=e},g.Pipeline.getRegisteredFunction=function(e){return e in g.Pipeline.registeredFunctions!=1?null:g.Pipeline.registeredFunctions[e]},g.Pipeline.warnIfFunctionNotRegistered=function(e){e.label&&e.label in this.registeredFunctions||g.utils.warn("Function is not registered with pipeline. This may cause problems when serialising the index.\n",e)},g.Pipeline.load=function(e){var n=new g.Pipeline;return e.forEach(function(e){var t=g.Pipeline.getRegisteredFunction(e);if(!t)throw Error("Cannot load un-registered function: "+e);n.add(t)}),n},g.Pipeline.prototype.add=function(){[].slice.call(arguments).forEach(function(e){g.Pipeline.warnIfFunctionNotRegistered(e),this._queue.push(e)},this)},g.Pipeline.prototype.after=function(e,t){g.Pipeline.warnIfFunctionNotRegistered(t);e=this._queue.indexOf(e);if(-1==e)throw Error("Cannot find existingFn");this._queue.splice(1+e,0,t)},g.Pipeline.prototype.before=function(e,t){g.Pipeline.warnIfFunctionNotRegistered(t);e=this._queue.indexOf(e);if(-1==e)throw Error("Cannot find existingFn");this._queue.splice(e,0,t)},g.Pipeline.prototype.remove=function(e){e=this._queue.indexOf(e);-1!=e&&this._queue.splice(e,1)},g.Pipeline.prototype.run=function(e){for(var t=[],n=e.length,o=this._queue.length,i=0;i<n;i++){for(var r=e[i],s=0;s<o&&null!=(r=this._queue[s](r,i,e));s++);null!=r&&t.push(r)}return t},g.Pipeline.prototype.reset=function(){this._queue=[]},g.Pipeline.prototype.get=function(){return this._queue},g.Pipeline.prototype.toJSON=function(){return this._queue.map(function(e){return g.Pipeline.warnIfFunctionNotRegistered(e),e.label})},(g.Index=function(){this._fields=[],this._ref="id",this.pipeline=new g.Pipeline,this.documentStore=new g.DocumentStore,this.index={},this.eventEmitter=new g.EventEmitter,this._idfCache={},this.on("add","remove","update",function(){this._idfCache={}}.bind(this))}).prototype.on=function(){var e=[].slice.call(arguments);return this.eventEmitter.addListener.apply(this.eventEmitter,e)},g.Index.prototype.off=function(e,t){return this.eventEmitter.removeListener(e,t)},g.Index.load=function(e){e.version!==g.version&&g.utils.warn("version mismatch: current "+g.version+" importing "+e.version);var t,n=new this;for(t in n._fields=e.fields,n._ref=e.ref,n.documentStore=g.DocumentStore.load(e.documentStore),n.pipeline=g.Pipeline.load(e.pipeline),n.index={},e.index)n.index[t]=g.InvertedIndex.load(e.index[t]);return n},g.Index.prototype.addField=function(e){return this._fields.push(e),this.index[e]=new g.InvertedIndex,this},g.Index.prototype.setRef=function(e){return this._ref=e,this},g.Index.prototype.saveDocument=function(e){return this.documentStore=new g.DocumentStore(e),this},g.Index.prototype.addDoc=function(i,e){var r;i&&(e=void 0===e||e,r=i[this._ref],this.documentStore.addDoc(r,i),this._fields.forEach(function(e){var t,n=this.pipeline.run(g.tokenizer(i[e])),o=(this.documentStore.addFieldLength(r,e,n.length),{});for(t in n.forEach(function(e){e in o?o[e]+=1:o[e]=1},this),o)this.index[e].addToken(t,{ref:r,tf:Math.sqrt(o[t])})},this),e)&&this.eventEmitter.emit("add",i,this)},g.Index.prototype.removeDocByRef=function(e){e&&!1!==this.documentStore.isDocStored()&&this.documentStore.hasDoc(e)&&(e=this.documentStore.getDoc(e),this.removeDoc(e,!1))},g.Index.prototype.removeDoc=function(e,t){var n;e&&(t=void 0===t||t,n=e[this._ref],this.documentStore.hasDoc(n))&&(this.documentStore.removeDoc(n),this._fields.forEach(function(t){this.pipeline.run(g.tokenizer(e[t])).forEach(function(e){this.index[t].removeToken(e,n)},this)},this),t)&&this.eventEmitter.emit("remove",e,this)},g.Index.prototype.updateDoc=function(e,t){t=void 0===t||t;this.removeDocByRef(e[this._ref],!1),this.addDoc(e,!1),t&&this.eventEmitter.emit("update",e,this)},g.Index.prototype.idf=function(e,t){var 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diff --git a/static/sw.js b/static/sw.js
index b096f7c..2602302 100644
--- a/static/sw.js
+++ b/static/sw.js
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