attempt to fix android json dictionary management

options.js

@@ -2,6 +2,29 @@
 
 'use strict';
 
+let platform = "win";
+
+async function get_real_platform()
+{
+    
+    let my_platform = undefined;
+    try {
+        my_platform = await browser.runtime.sendMessage({type:"platform"});
+        if(my_platform)
+            my_platform = my_platform["response"];
+    }catch(err){}
+    while(my_platform == "")
+    {
+        try {
+            my_platform = await browser.runtime.sendMessage({type:"platform"});
+            if(my_platform)
+                my_platform = my_platform["response"];
+        }catch(err){}
+    }
+    platform = my_platform;
+}
+get_real_platform();
+
 let settings = [];
 
 function defaults()
@@ -579,6 +602,8 @@ function buildpage()
         optionsection.appendChild(container);
     }
     
+    if(platform != "android")
+    {
         // mining
         
         let liveminingbutton = document.createElement("button");
@@ -598,6 +623,19 @@ function buildpage()
         optionsection.appendChild(jsonmanagebutton);
         
         optionsection.appendChild(document.createElement("hr"));
+    }
+    else
+    {
+        // import
+        
+        let jsonmanagebutton = document.createElement("button");
+        jsonmanagebutton.type = "button";
+        jsonmanagebutton.innerText = "Manage JSON Dictionaries";
+        jsonmanagebutton.onclick = function(e){browser.tabs.create({url:browser.extension.getURL('json_config.html')}); e.preventDefault();};
+        optionsection.appendChild(jsonmanagebutton);
+        
+        optionsection.appendChild(document.createElement("hr"));
+    }
     
     // deconjugation rules
     

texthook.js

@@ -61,8 +61,6 @@ only_selection: false
 
 let platform = "win";
 
-let last_seen_doc = undefined;
-
 async function get_real_platform()
 {