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+<style type="text/css">body{font-family:sans-serif}#iframe{border:none;height:100%;left:0;top:0;width:100%}#edit,#iframe{position:absolute}#edit{color:rgba(0,0,0,.54);display:none;font-family:monospace;font-weight:700;right:1em;top:.85em;z-index:100}#edit:not(:hover){text-decoration:none}#warning{background-color:#feecc2;border-radius:4px;font-size:16px;left:50vw;margin-left:-10em;padding:1em;position:absolute;top:10vh;width:20em;z-index:100}#warning:empty{display:none}body.toasting #edit,body.toasting #iframe{opacity:.5;pointer-events:none}body.toasting #toast{background-color:#feecc2;border-radius:4px;box-sizing:border-box;font-size:13px;left:50%;margin-left:-160px;max-width:320px;padding:1em;position:absolute;top:10px;z-index:101}body.toasting #warning,body:not(.toasting) #toast{display:none}</style>
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+<div id="toast">itty.bitty is experimental technology that renders linked content from outside sources. <a href="http://toast.bitty.site" target="_blank">Learn&nbsp;more</a>.
+<br><br>This content is only as trustworthy as its source, and it should be treated with the caution
+you would show any insecure web page.
+<br><br><button onclick="dismiss()">I understand</button> <input id="never" type="checkbox"><label for="never">Never show this</label></div>
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diff --git a/manifest.appcache b/manifest.appcache
index 675e18c..e8a7216 100644
--- a/manifest.appcache
+++ b/manifest.appcache
@@ -1,2 +1,3 @@
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-# v8
\ No newline at end of file
+/favicon.ico
+# v15
\ No newline at end of file
diff --git a/src/index.css b/src/index.css
index c6ea50a..5e6f4bc 100644
--- a/src/index.css
+++ b/src/index.css
@@ -38,3 +38,25 @@ body {
 #warning:empty {
   display: none;
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+body.toasting #iframe,
+body.toasting #edit {
+  opacity: 0.5;
+  pointer-events: none;
+}
+body.toasting #toast {
+  box-sizing: border-box;
+  background-color: #feecc2;
+  border-radius: 4px;
+  font-size: 13px;
+  left: 50%;
+  top: 10px;
+  margin-left: -160px;
+  padding: 1em;
+  position: absolute;
+  max-width: 320px;
+  z-index: 101;
+}
+body:not(.toasting) #toast,
+body.toasting #warning {
+  display: none;
+}
diff --git a/src/index.js b/src/index.js
index a039de8..28219f4 100644
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+++ b/src/index.js
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 var HEAD_TAGS = "PGJhc2UgdGFyZ2V0PSJfdG9wIj4K";
 var HEAD_TAGS_EXTENDED =
   "PG1ldGEgY2hhcnNldD0idXRmLTgiPjxtZXRhIG5hbWU9InZpZXdwb3J0IiBjb250ZW50PSJ3aWR0aD1kZXZpY2Utd2lkdGgiPjxiYXNlIHRhcmdldD0iX3RvcCI+PHN0eWxlIHR5cGU9InRleHQvY3NzIj5ib2R5e21hcmdpbjowIGF1dG87cGFkZGluZzoxMnZtaW4gMTB2bWluO21heC13aWR0aDozNWVtO2xpbmUtaGVpZ2h0OjEuNWVtO2ZvbnQtZmFtaWx5OiAtYXBwbGUtc3lzdGVtLEJsaW5rTWFjU3lzdGVtRm9udCxzYW5zLXNlcmlmO3dvcmQtd3JhcDogYnJlYWstd29yZDt9PC9zdHlsZT4g";
+
+function dismiss() {
+  if (document.getElementById("never").checked) window.localStorage.setItem('toasted', true);
+  document.body.classList.remove("toasting")
+}
+
 window.onhashchange = window.onload = function() {
   var hash = window.location.hash.substring(1);
   if (hash.length < 3) {
     location.href = "/edit";
   } else {
+    if (!window.localStorage.getItem('toasted')) document.body.classList.add("toasting");
+
     var iframe = document.getElementById("iframe");
     var link = document.getElementById("edit");
     var preamble = undefined;
diff --git a/src/index.min.css b/src/index.min.css
index e869d99..fa29945 100644
--- a/src/index.min.css
+++ b/src/index.min.css
@@ -1 +1 @@
-body{font-family:sans-serif}#iframe{border:none;height:100%;left:0;top:0;width:100%}#edit,#iframe{position:absolute}#edit{color:rgba(0,0,0,.54);display:none;font-family:monospace;font-weight:700;right:1em;top:.85em;z-index:100}#edit:not(:hover){text-decoration:none}#warning{background-color:#feecc2;border-radius:4px;font-size:16px;left:50vw;margin-left:-10em;padding:1em;position:absolute;top:10vh;width:20em;z-index:100}#warning:empty{display:none}
\ No newline at end of file
+body{font-family:sans-serif}#iframe{border:none;height:100%;left:0;top:0;width:100%}#edit,#iframe{position:absolute}#edit{color:rgba(0,0,0,.54);display:none;font-family:monospace;font-weight:700;right:1em;top:.85em;z-index:100}#edit:not(:hover){text-decoration:none}#warning{background-color:#feecc2;border-radius:4px;font-size:16px;left:50vw;margin-left:-10em;padding:1em;position:absolute;top:10vh;width:20em;z-index:100}#warning:empty{display:none}body.toasting #edit,body.toasting #iframe{opacity:.5;pointer-events:none}body.toasting #toast{background-color:#feecc2;border-radius:4px;box-sizing:border-box;font-size:13px;left:50%;margin-left:-160px;max-width:320px;padding:1em;position:absolute;top:10px;z-index:101}body.toasting #warning,body:not(.toasting) #toast{display:none}
\ No newline at end of file
diff --git a/src/index.min.js b/src/index.min.js
index 5d44c68..9192f7f 100644
--- a/src/index.min.js
+++ b/src/index.min.js
@@ -1 +1 @@
-var HEAD_TAGS="PGJhc2UgdGFyZ2V0PSJfdG9wIj4K";var HEAD_TAGS_EXTENDED="PG1ldGEgY2hhcnNldD0idXRmLTgiPjxtZXRhIG5hbWU9InZpZXdwb3J0IiBjb250ZW50PSJ3aWR0aD1kZXZpY2Utd2lkdGgiPjxiYXNlIHRhcmdldD0iX3RvcCI+PHN0eWxlIHR5cGU9InRleHQvY3NzIj5ib2R5e21hcmdpbjowIGF1dG87cGFkZGluZzoxMnZtaW4gMTB2bWluO21heC13aWR0aDozNWVtO2xpbmUtaGVpZ2h0OjEuNWVtO2ZvbnQtZmFtaWx5OiAtYXBwbGUtc3lzdGVtLEJsaW5rTWFjU3lzdGVtRm9udCxzYW5zLXNlcmlmO3dvcmQtd3JhcDogYnJlYWstd29yZDt9PC9zdHlsZT4g";window.onhashchange=window.onload=function(){var hash=window.location.hash.substring(1);if(hash.length<3){location.href="/edit"}else{var iframe=document.getElementById("iframe");var link=document.getElementById("edit");var preamble=undefined;var slashIndex=hash.indexOf("/");var title=hash.substring(0,slashIndex);document.title=title.length?decodeURIComponent(title.replace(/_/g," ")):location.hostname;hash=hash.substring(slashIndex+1);var editable=hash.charAt(0)=="?";if(editable){hash=hash.substring(1)}if(hash.indexOf("data:")!=0){var compressed=true;preamble=HEAD_TAGS_EXTENDED;hash="data:text/html;charset=utf-8;"+(compressed?"bxze64,":"base64,")+hash}else if(hash.indexOf("data:text/html;")==0){preamble=HEAD_TAGS}link.onclick=function(){location.href="/edit"+location.hash};var isIE=navigator.userAgent.match(/rv:11/);var isEdge=navigator.userAgent.match(/Edge\//);if((isEdge||isIE)&&location.href.length==2083){document.getElementById("warning").innerHTML='Edge only supports shorter URLs (maximum 2083 bytes).<br>Larger sites may require a different browser.<br><a href="http://reference.bitty.site">Learn more</a>'}decompressDataURI(hash,preamble,function(hash){if(!hash)return;iframe.sandbox="allow-scripts allow-forms allow-top-navigation allow-popups allow-modals";if(!isIE){if(hash)iframe.src=hash}else{dataToString(hash,function(content){var doc=iframe.contentWindow.document;doc.open();doc.write(content);doc.close()})}});var link=document.getElementById("edit");link.href="/edit"+location.hash;link.style.display=editable?"block":"none"}};
+var HEAD_TAGS="PGJhc2UgdGFyZ2V0PSJfdG9wIj4K";var HEAD_TAGS_EXTENDED="PG1ldGEgY2hhcnNldD0idXRmLTgiPjxtZXRhIG5hbWU9InZpZXdwb3J0IiBjb250ZW50PSJ3aWR0aD1kZXZpY2Utd2lkdGgiPjxiYXNlIHRhcmdldD0iX3RvcCI+PHN0eWxlIHR5cGU9InRleHQvY3NzIj5ib2R5e21hcmdpbjowIGF1dG87cGFkZGluZzoxMnZtaW4gMTB2bWluO21heC13aWR0aDozNWVtO2xpbmUtaGVpZ2h0OjEuNWVtO2ZvbnQtZmFtaWx5OiAtYXBwbGUtc3lzdGVtLEJsaW5rTWFjU3lzdGVtRm9udCxzYW5zLXNlcmlmO3dvcmQtd3JhcDogYnJlYWstd29yZDt9PC9zdHlsZT4g";function dismiss(){if(document.getElementById("never").checked)window.localStorage.setItem("toasted",true);document.body.classList.remove("toasting")}window.onhashchange=window.onload=function(){var hash=window.location.hash.substring(1);if(hash.length<3){location.href="/edit"}else{if(!window.localStorage.getItem("toasted"))document.body.classList.add("toasting");var iframe=document.getElementById("iframe");var link=document.getElementById("edit");var preamble=undefined;var slashIndex=hash.indexOf("/");var title=hash.substring(0,slashIndex);document.title=title.length?decodeURIComponent(title.replace(/_/g," ")):location.hostname;hash=hash.substring(slashIndex+1);var editable=hash.charAt(0)=="?";if(editable){hash=hash.substring(1)}if(hash.indexOf("data:")!=0){var compressed=true;preamble=HEAD_TAGS_EXTENDED;hash="data:text/html;charset=utf-8;"+(compressed?"bxze64,":"base64,")+hash}else if(hash.indexOf("data:text/html;")==0){preamble=HEAD_TAGS}link.onclick=function(){location.href="/edit"+location.hash};var isIE=navigator.userAgent.match(/rv:11/);var isEdge=navigator.userAgent.match(/Edge\//);if((isEdge||isIE)&&location.href.length==2083){document.getElementById("warning").innerHTML='Edge only supports shorter URLs (maximum 2083 bytes).<br>Larger sites may require a different browser.<br><a href="http://reference.bitty.site">Learn more</a>'}decompressDataURI(hash,preamble,function(hash){if(!hash)return;iframe.sandbox="allow-scripts allow-forms allow-top-navigation allow-popups allow-modals";if(!isIE){if(hash)iframe.src=hash}else{dataToString(hash,function(content){var doc=iframe.contentWindow.document;doc.open();doc.write(content);doc.close()})}});var link=document.getElementById("edit");link.href="/edit"+location.hash;link.style.display=editable?"block":"none"}};
diff --git a/src/min.sh b/src/min.sh
new file mode 100755
index 0000000..bc678df
--- /dev/null
+++ b/src/min.sh
@@ -0,0 +1,4 @@
+#! /bin/bash
+terser index.js > index.min.js
+terser data.js > data.min.js
+postcss index.css > index.min.css
\ No newline at end of file