Why Your WeChat Mini‑Program Requests Fail: Fixing Invalid URLs and TLS 1.2 Issues

Introduction

The communication logic between a WeChat Mini‑Program and a server is simple; the article summarizes two problems encountered after the first three steps.

Problem 1: invalid url

Calling a network request in the Mini‑Program:

wx.request({
  url: 'https://www.xxx.com/test.php',
  ...
})

The request fails with “request:fail invalid url”. The documentation provides no explanation.

Solution: replace the single‑quoted URL string with backticks:

...
url: `https://www.xxx.com/test.php`,
...

The reason for requiring backticks is unclear; the author asks for insights.

Problem 2: TLS 1.2

After fixing the first issue, the Mini‑Program reports that the TLS version must be ≥ 1.2, indicating the server’s TLS is too low.

Check the TLS version via the browser’s security lock icon; the example shows TLS 1.0.

Upgrade Process

1) Upgrade OpenSSL. Check the current version: openssl version -a The server runs 0.0.98, which does not support TLS 1.2; upgrade to 1.0.2.

2) Recompile Nginx because it was built with the old OpenSSL.

After these steps, the browser shows TLS 1.2 and the Mini‑Program can obtain request results.

Conclusion

The article outlines the overall approach; detailed step‑by‑step instructions (e.g., obtaining free SSL certificates, configuring Nginx HTTPS, OpenSSL upgrade steps) will be added later.