diff --git a/.eslintignore b/.eslintignore
index c129ac2d909d..949bed6939e9 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -174,6 +174,10 @@ dom/encoding/test/file_utf16_le_bom.js
 dom/tests/mochitest/general/test_focusrings.xul
 dom/html/test/test_bug677658.html
 
+# Service workers fixtures which require specific resource caching.
+dom/base/test/file_js_cache.js
+dom/serviceworkers/test/file_js_cache.js
+
 # Intentional broken files
 dom/base/test/file_js_cache_syntax_error.js
 dom/base/test/jsmodules/test_syntaxError.html
diff --git a/.prettierignore b/.prettierignore
index 7190e24ae5ac..70cd67a27cd8 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -109,6 +109,13 @@ devtools/server/**
 devtools/shared/**
 devtools/startup/**
 
+# Ignore CORS fixtures which require specific resource hashes.
+dom/security/test/sri/script*
+
+# Ignore other DOM fixtures with funky chars.
+dom/base/test/file_bug687859-charset.js
+dom/base/test/file_bug687859-inherit.js
+
 # Ignore devtools debugger files
 # Keep in sync with devtools/client/debugger/.prettierignore
 devtools/client/debugger/src/workers/parser/tests/fixtures/functionNames.js
diff --git a/dom/base/test/file_bug687859-charset.js b/dom/base/test/file_bug687859-charset.js
index 3cd879b7a27e..e812a1e37f92 100644
--- a/dom/base/test/file_bug687859-charset.js
+++ b/dom/base/test/file_bug687859-charset.js
@@ -1 +1 @@
-var stringFromCharsetScript = "�";
+var stringFromCharsetScript = "¡";
\ No newline at end of file
diff --git a/dom/base/test/file_bug687859-inherit.js b/dom/base/test/file_bug687859-inherit.js
index 81ecca7be462..b83f60b2fb16 100644
--- a/dom/base/test/file_bug687859-inherit.js
+++ b/dom/base/test/file_bug687859-inherit.js
@@ -1 +1 @@
-var stringFromInheritScript = "�";
+var stringFromInheritScript = "¡";
\ No newline at end of file
diff --git a/dom/base/test/file_js_cache.js b/dom/base/test/file_js_cache.js
index 1b08386c810b..b9b966775c40 100644
--- a/dom/base/test/file_js_cache.js
+++ b/dom/base/test/file_js_cache.js
@@ -1,6 +1,5 @@
 function baz() {}
 function bar() {}
-function foo() {
-  bar();
-}
+function foo() { bar() }
 foo();
+
diff --git a/dom/security/test/sri/script.js b/dom/security/test/sri/script.js
index 41ae13e22d14..8fd8f96b2f4e 100644
--- a/dom/security/test/sri/script.js
+++ b/dom/security/test/sri/script.js
@@ -1 +1 @@
-var load = true;
+var load=true;
diff --git a/dom/security/test/sri/script_301.js b/dom/security/test/sri/script_301.js
index a6bdc78b440f..9a95de77cf6b 100644
--- a/dom/security/test/sri/script_301.js
+++ b/dom/security/test/sri/script_301.js
@@ -1 +1 @@
-var load = false;
+var load=false;
diff --git a/dom/security/test/sri/script_302.js b/dom/security/test/sri/script_302.js
index a6bdc78b440f..9a95de77cf6b 100644
--- a/dom/security/test/sri/script_302.js
+++ b/dom/security/test/sri/script_302.js
@@ -1 +1 @@
-var load = false;
+var load=false;
diff --git a/dom/security/test/sri/script_401.js b/dom/security/test/sri/script_401.js
index 41ae13e22d14..8fd8f96b2f4e 100644
--- a/dom/security/test/sri/script_401.js
+++ b/dom/security/test/sri/script_401.js
@@ -1 +1 @@
-var load = true;
+var load=true;
diff --git a/dom/security/test/sri/script_crossdomain1.js b/dom/security/test/sri/script_crossdomain1.js
index de78ddbb9d3c..1f17a6db2477 100644
--- a/dom/security/test/sri/script_crossdomain1.js
+++ b/dom/security/test/sri/script_crossdomain1.js
@@ -1,4 +1,4 @@
 /*
  * this file should be loaded, because it has CORS enabled.
- */
+*/
 window.hasCORSLoaded = true;
diff --git a/dom/serviceworkers/test/file_js_cache.js b/dom/serviceworkers/test/file_js_cache.js
index 1b08386c810b..b9b966775c40 100644
--- a/dom/serviceworkers/test/file_js_cache.js
+++ b/dom/serviceworkers/test/file_js_cache.js
@@ -1,6 +1,5 @@
 function baz() {}
 function bar() {}
-function foo() {
-  bar();
-}
+function foo() { bar() }
 foo();
+