pre-filter URL's for so we don't try to run isolator checks on domains that have no chance of needing isolation

Makefile

@@ -351,3 +351,11 @@ test:
 		-u http://127.0.0.1:7657/i2psnark \
 		-u http://127.0.0.1:7657/webmail \
 		-u http://idk.i2p
+
+lht-test:
+	web-ext run -u about:debugging \
+		-u http://localhost:7657/home \
+		-u http://localhost:7657/i2ptunnel \
+		-u http://localhost:7657/i2psnark \
+		-u http://localhost:7657/webmail \
+		-u http://idk.i2p

scrub.js

@@ -949,14 +949,12 @@ browser.webNavigation.onCompleted.addListener(getClearTab, filter);
 
 window.setInterval(getClearTab, 2000);
 
-browser.webRequest.onBeforeRequest.addListener(
-  contextSetup,
-  { urls: ["<all_urls>"] },
-  //["blocking"]
-);
+browser.webRequest.onBeforeRequest.addListener(contextSetup, {
+  urls: ["*://*.i2p/*", "*://localhost/*", "*://127.0.0.1/*", "*://*/*i2p*"],
+});
 
 browser.webRequest.onBeforeSendHeaders.addListener(
   contextScrub,
-  { urls: ["<all_urls>"] },
+  { urls: ["*://*.i2p/*"] },
   ["requestHeaders"]
 );