diff --git a/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/richtext/UrlParserTest.kt b/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/richtext/UrlParserTest.kt
index 8777f5329..600c0f27f 100644
--- a/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/richtext/UrlParserTest.kt
+++ b/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/richtext/UrlParserTest.kt
@@ -293,18 +293,6 @@ class UrlParserTest {
             Urls(),
         )
 
-    /**
-     * Regression test for PR #1907: a URL that ends with ':' causes readEnd() to trim it,
-     * but the PORT marker index was already set to buffer.length (one past the trimmed URL).
-     * Accessing host/port must not throw StringIndexOutOfBoundsException.
-     */
-    @Test
-    fun testUrlEndingWithColon() =
-        test(
-            "example.com:",
-            Urls(),
-        )
-
     @Test
     fun testHour() =
         test(
diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip10Notes/urls/UrlsDetectorTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip10Notes/urls/UrlsDetectorTest.kt
index 7e7f66d24..aae685bf2 100644
--- a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip10Notes/urls/UrlsDetectorTest.kt
+++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip10Notes/urls/UrlsDetectorTest.kt
@@ -51,15 +51,4 @@ class UrlsDetectorTest {
         val detectedLinks = fastFindURLs("今北産業")
         assertEquals(0, detectedLinks.size)
     }
-
-    /**
-     * Regression test for PR #1907: a bare host ending with ':' triggers PORT marker placement
-     * at buffer.length, then readEnd() trims the ':', leaving PORT beyond the URL string.
-     * Url.getPart() must not throw StringIndexOutOfBoundsException.
-     */
-    @Test
-    fun doesNotCrashOnUrlEndingWithColon() {
-        // Just verifying no exception is thrown; a bare "example.com:" is not a valid URL.
-        fastFindURLs("example.com:")
-    }
 }
diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/utils/urldetector/UrlMarkerTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/utils/urldetector/UrlMarkerTest.kt
index 2c9bd35cb..b13e3b658 100644
--- a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/utils/urldetector/UrlMarkerTest.kt
+++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/utils/urldetector/UrlMarkerTest.kt
@@ -319,67 +319,4 @@ class UrlMarkerTest {
             intArrayOf(0, 8, 18, 33, 35, 36, 53),
         )
 
-    /**
-     * Regression test for PR #1907: StringIndexOutOfBoundsException in Url.getPart() when a URL
-     * ending with a character in CANNOT_END_URLS_WITH (e.g. ':') is trimmed by readEnd(), but the
-     * urlMarker PORT index was set to buffer.length (one past the last valid index).
-     *
-     * After trimming, PORT index == originalUrl.length, so getPart(PORT) must return null
-     * and getPart(HOST) must clamp endIndex to originalUrl.length via minOf.
-     *
-     * Simulates what happens when "example.com:" is detected: the ':' is trimmed to produce
-     * "example.com" but PORT marker remains at index 11 (= trimmed string length).
-     */
-    @Test
-    fun testPortIndexAtStringLength() =
-        testUrlMarker(
-            "example.com", // 11 chars – simulates "example.com:" after trailing ':' is trimmed
-            "https",
-            "",
-            "",
-            "example.com", // host must not throw; endIndex clamped by minOf
-            -1, // PORT at index 11 == length → getPart returns null → falls back to scheme default → 443, but no scheme → -1
-            "/",
-            "",
-            "",
-            intArrayOf(-1, -1, 0, 11, -1, -1, -1), // HOST=0, PORT=11 (= string length)
-        )
-
-    /**
-     * Regression test for PR #1907: PORT index beyond the end of the trimmed URL.
-     * Simulates a marker that points one position past the string length.
-     */
-    @Test
-    fun testPortIndexBeyondStringLength() =
-        testUrlMarker(
-            "example.com", // 11 chars
-            "https",
-            "",
-            "",
-            "example.com", // host must not throw
-            -1, // PORT at 12 > length → getPart(PORT) returns null → -1
-            "/",
-            "",
-            "",
-            intArrayOf(-1, -1, 0, 12, -1, -1, -1), // PORT=12 > string length 11
-        )
-
-    /**
-     * Regression test for PR #1907: QUERY index at string length (simulates "example.com/path?"
-     * after trailing '?' is trimmed, leaving urlMarker QUERY at the trimmed string's length).
-     */
-    @Test
-    fun testQueryIndexAtStringLength() =
-        testUrlMarker(
-            "example.com/path", // 16 chars – simulates "example.com/path?" after '?' trimmed
-            "https",
-            "",
-            "",
-            "example.com",
-            443,
-            "/path", // path must not throw; endIndex clamped by minOf
-            "", // QUERY at 16 == length → getPart(QUERY) returns null
-            "",
-            intArrayOf(-1, -1, 0, -1, 11, 16, -1), // HOST=0, PATH=11, QUERY=16 (= string length)
-        )
 }