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cssPrepend ​

Inserts the specified content before the existing response body. (This only works for responses with content-type containing css and a status code containing a body (e.g., 200/500).)

⚠️ Note: Requests without a body, such as 204 and 304 responses, are not affected.

Rule Syntax ​

txt
pattern cssPrepend://value [filters...]
ParametersDescriptionDetailed Documentation
patternAn expression to match the request URLMatch Pattern Documentation
valueText or binary content. The following types are supported:
• Directory/File Path
• Remote URL
• Inline/Embedded/Values Content		Operation Instruction Documentation
filtersOptional filters, supporting matching: • Request URL/Method/Header/Content • Response Status Code/HeaderFilter Documentation

Configuration Example ​

Inline Method ​

txt
www.example.com/path1 cssPrepend://(Hello) file://(-test-)
www.example.com/path2 cssPrepend://(Hello) file://(-test-) resType://js
www.example.com/path3 cssPrepend://(Hello) file://(-test-) resType://css
  • Request https://www.example.com/path1/to. The response content becomes
    html
    <!DOCTYPE html>
<style>Hello</style>-test-
  • Request https://www.example.com/path2/to. The response content becomes -test-
  • Request The response content of https://www.example.com/path3/to becomes Hello-test-

Embedded/Values Method ​

txt
``` body.txt
Hello world.
```
www.example.com/path1 cssPrepend://{body.txt} file://(-test-)
www.example.com/path2 cssPrepend://{body.txt} file://(-test-) resType://js
www.example.com/path3 cssPrepend://{body.txt} file://(-test-) resType://css
  • Requesting https://www.example.com/path1/to, the response content becomes
    html
    <!DOCTYPE html>
<style>Hello world.</style> -test-
  • Requesting https://www.example.com/path2/to, the response content becomes -test-
  • Request https://www.example.com/path3/to. The response content becomes Hello world.-test-

Local/Remote Resources ​

txt
www.example.com/path1 cssPrepend:///User/xxx/test.css
www.example.com/path2 cssPrepend://https://www.xxx.com/xxx/params.css
# Editing a temporary file
www.example.com/path3 cssPrepend://temp/blank.css
  1. Inject content before the response content (Prepend To Body): resPrepend
  2. Inject HTML content before the response content (Prepend HTML To Body, response type must be text/html): htmlPrepend
  3. Inject CSS content before the response content (Prepend CSS To Body, response type must be text/html or text/css): cssPrepend
  4. Inject JS content before the response content (Prepend JS To Body, response type must be text/html, text/css, or application/javascript): jsPrepend
  5. Replace the response content (Replace Body): resBody
  6. Replace the response content with HTML content (Replace Body, response type must be text/html): htmlBody
  7. Replace the response content with CSS content (Replace Body, response type must be text/html or text/css): cssBody
  8. Replace the response content with JS content (Replace Body, response type must be text/html, text/css, or application/javascript): jsBody
  9. Append content after the response content (Append To Body): resAppend
  10. Append HTML content after the response content (Append HTML To Body, response type must be text/html): htmlAppend
  11. Append CSS content after the response content (Append CSS To Body, response type must be text/html or text/css): cssAppend
  12. Append JS content after the response content (Append JS To Body, response type must be text/html, text/css, or application/javascript): jsAppend
  13. Replace the response content using keywords or regular expressions (Modify Body Text): resReplace
  14. Override JSON/Form objects in the response content (Modify Form/JSON): resMerge
  15. Delete a property from a JSON/Form object in the response content (Delete Form/JSON): delete://resBody.xxx