feat: custom domains for OpenWebUI + fix README issues

- Add custom domain support in Options page so users can add self-hosted AI services (e.g. https://ai.myserver.com) - Background worker dynamically injects content scripts on custom domains using scripting.executeScript - Add optional_host_permissions so Chrome can grant per-domain access - Rewrite README: add clone step to Firefox instructions, clarify what "credentials" means in step 3, add Windows commands alongside Mac/Linux for every terminal step - Bump version to 0.2.0 https://claude.ai/code/session_01Dvgwe7XMoSxnWXkih8p1Cw
2026-03-26 00:35:21 +00:00
parent 1fe813337b
commit 60b810b1b9
8 changed files with 286 additions and 118 deletions
@@ -8,63 +8,69 @@
 * Communication: page script <-> content script via window.postMessage
 */

-'use strict';
+(function () {
+  'use strict';

-// Cross-browser API
-const api =
-  typeof browser !== 'undefined' && browser.runtime
-    ? browser
-    : typeof chrome !== 'undefined'
-      ? chrome
-      : null;
+  // Prevent double-injection on custom domains
+  if (window.__silentSendInjected) return;
+  window.__silentSendInjected = true;

-// Load mappings and settings, then inject into page
-async function init() {
-  const result = await api.storage.local.get(['ss_mappings', 'ss_identity', 'ss_settings']);
-  const mappings = result.ss_mappings || [];
-  const identity = result.ss_identity || {};
-  const settings = result.ss_settings || { enabled: true };
+  // Cross-browser API
+  const api =
+    typeof browser !== 'undefined' && browser.runtime
+      ? browser
+      : typeof chrome !== 'undefined'
+        ? chrome
+        : null;

-  // Inject the main interception script into the page's world
-  const script = document.createElement('script');
-  script.setAttribute('data-ss-config', JSON.stringify({ mappings, identity, settings }));
-  script.src = api.runtime.getURL('src/content/content.js');
-  (document.head || document.documentElement).appendChild(script);
-  script.onload = () => script.remove();
+  // Load mappings and settings, then inject into page
+  async function init() {
+    const result = await api.storage.local.get(['ss_mappings', 'ss_identity', 'ss_settings']);
+    const mappings = result.ss_mappings || [];
+    const identity = result.ss_identity || {};
+    const settings = result.ss_settings || { enabled: true };

-  // Listen for substitution events from the page script
-  window.addEventListener('message', (event) => {
-    if (event.source !== window) return;
-    if (event.data?.type === 'ss:substitution-performed') {
-      api.runtime.sendMessage({
-        type: 'substitution:performed',
-        count: event.data.count,
-        replacements: event.data.replacements,
-      }).catch(() => {});
-    }
-  });
+    // Inject the main interception script into the page's world
+    const script = document.createElement('script');
+    script.setAttribute('data-ss-config', JSON.stringify({ mappings, identity, settings }));
+    script.src = api.runtime.getURL('src/content/content.js');
+    (document.head || document.documentElement).appendChild(script);
+    script.onload = () => script.remove();

-  // Forward storage changes to the page script
-  api.storage.onChanged.addListener((changes) => {
-    if (changes.ss_mappings || changes.ss_identity || changes.ss_settings) {
-      window.postMessage({
-        type: 'ss:config-updated',
-        mappings: changes.ss_mappings?.newValue,
-        identity: changes.ss_identity?.newValue,
-        settings: changes.ss_settings?.newValue,
-      }, '*');
-    }
-  });
+    // Listen for substitution events from the page script
+    window.addEventListener('message', (event) => {
+      if (event.source !== window) return;
+      if (event.data?.type === 'ss:substitution-performed') {
+        api.runtime.sendMessage({
+          type: 'substitution:performed',
+          count: event.data.count,
+          replacements: event.data.replacements,
+        }).catch(() => {});
+      }
+    });

-  // Listen for settings updates from popup via runtime messages
-  api.runtime.onMessage.addListener((message) => {
-    if (message.type === 'settings:updated') {
-      window.postMessage({
-        type: 'ss:config-updated',
-        settings: message.settings,
-      }, '*');
-    }
-  });
-}
+    // Forward storage changes to the page script
+    api.storage.onChanged.addListener((changes) => {
+      if (changes.ss_mappings || changes.ss_identity || changes.ss_settings) {
+        window.postMessage({
+          type: 'ss:config-updated',
+          mappings: changes.ss_mappings?.newValue,
+          identity: changes.ss_identity?.newValue,
+          settings: changes.ss_settings?.newValue,
+        }, '*');
+      }
+    });

-init();
+    // Listen for settings updates from popup via runtime messages
+    api.runtime.onMessage.addListener((message) => {
+      if (message.type === 'settings:updated') {
+        window.postMessage({
+          type: 'ss:config-updated',
+          settings: message.settings,
+        }, '*');
+      }
+    });
+  }
+
+  init();
+})();