Fix MyReadingManga not loading images correctly (#4212)

src/all/myreadingmanga/build.gradle

@@ -5,7 +5,7 @@ ext {
     extName = 'MyReadingManga'
     pkgNameSuffix = 'all.myreadingmanga'
     extClass = '.MyReadingMangaFactory'
-    extVersionCode = 39
+    extVersionCode = 40
     libVersion = '1.2'
     containsNsfw = true
 }

src/all/myreadingmanga/src/eu/kanade/tachiyomi/extension/all/myreadingmanga/MyReadingManga.kt

@@ -17,6 +17,7 @@ import java.text.SimpleDateFormat
 import java.util.Locale
 import java.util.concurrent.TimeUnit
 import okhttp3.CacheControl
+import okhttp3.Headers
 import okhttp3.OkHttpClient
 import okhttp3.Request
 import okhttp3.Response
@@ -37,6 +38,9 @@ open class MyReadingManga(override val lang: String, private val siteLang: Strin
         .build()!!
     override val supportsLatest = true
 
+    override fun headersBuilder(): Headers.Builder = Headers.Builder()
+        .add("Referer", baseUrl)
+
     // Popular - Random
     override fun popularMangaRequest(page: Int): Request {
         return GET("$baseUrl/search/?wpsolr_sort=sort_by_random&wpsolr_page=$page&wpsolr_fq[0]=lang_str:$siteLang", headers) // Random Manga as returned by search