Deal with bizarre IE6 .innerHTML behavior (which eats some <script> tags)

1 files changed, 13 insertions, 2 deletions

diff --git a/lib/js/urweb.js b/lib/js/urweb.js
index ba1e9625..5885143e 100644
--- a/lib/js/urweb.js
+++ b/lib/js/urweb.js
@@ -1,3 +1,14 @@
+// Detect browser quirks that we should be aware of.
+
+function needsDynPrefix() {
+  var span = document.createElement("span");
+  span.innerHTML = "<script>alert('test');</script>";
+  var scripts = span.getElementsByTagName("script");
+  return scripts.length == 0;
+}
+
+var dynPrefix = needsDynPrefix() ? "<span style=\"display:none\">A</span>" : "";
+
 // Function versions of operators
 
 function not(x) { return !x; }
@@ -305,7 +316,7 @@ function runScripts(node) {
     for (var i = 0; i < len; ++i) {
       thisScript = scriptsCopy[i];
       try {
-        eval(thisScript.textContent);
+        eval(thisScript.text);
       } catch (v) {
         doExn(v);
       }
@@ -356,7 +367,7 @@ function dyn(pnode, s) {
     }
 
     var cls = {v : null};
-    var html = flatten(cls, v);
+    var html = dynPrefix + flatten(cls, v);
     x.closures = cls.v;
 
     if (pnode == "table") {