fix: resolve loadURL properly for in-page navigations (#36149)

Co-authored-by: Jeremy Rose <[email protected]>

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: Jeremy Rose <[email protected]>

lib/browser/api/web-contents.ts

@@ -475,12 +475,14 @@ WebContents.prototype.loadURL = function (url, options) {
     const removeListeners = () => {
       this.removeListener('did-finish-load', finishListener);
       this.removeListener('did-fail-load', failListener);
+      this.removeListener('did-navigate-in-page', finishListener);
       this.removeListener('did-start-navigation', navigationListener);
       this.removeListener('did-stop-loading', stopLoadingListener);
       this.removeListener('destroyed', stopLoadingListener);
     };
     this.on('did-finish-load', finishListener);
     this.on('did-fail-load', failListener);
+    this.on('did-navigate-in-page', finishListener);
     this.on('did-start-navigation', navigationListener);
     this.on('did-stop-loading', stopLoadingListener);
     this.on('destroyed', stopLoadingListener);

spec-main/api-web-contents-spec.ts

@@ -340,6 +340,12 @@ describe('webContents module', () => {
       await expect(w.loadFile(path.join(fixturesPath, 'pages', 'base-page.html'))).to.eventually.be.fulfilled();
     });
 
+    it('resolves when navigating within the page', async () => {
+      await w.loadFile(path.join(fixturesPath, 'pages', 'base-page.html'));
+      await new Promise(resolve => setTimeout(resolve));
+      await expect(w.loadURL(w.getURL() + '#foo')).to.eventually.be.fulfilled();
+    });
+
     it('rejects when failing to load a file URL', async () => {
       await expect(w.loadURL('file:non-existent')).to.eventually.be.rejected()
         .and.have.property('code', 'ERR_FILE_NOT_FOUND');