Fix htmlWebpackPluginTemplateCustomizer option type problem

[mizok]

Description

I found that the problem was caused by query string.

When we parsed the full loader option object to query string, it actually parsed every value to string, which means there will be no Boolean type value.

check this: https://stackoverflow.com/questions/6461668/boolean-in-a-uri-query

So here my solution is parsing options to JSON using JSON.stringify, instead of parsing to query string( JSON is also an acceptable type here for webpack loader inline).

check this: https://webpack.js.org/concepts/loaders/#inline

But unfortunately, both of these two way do NOT support option value in which type is function, which means the html-loader option : preprocessor is not supported here (I not only mentioned this in README.md, but also made a colorful console.log inside index.ts in case someone doesn't read the doc)

Any suggestion will be appreciated, I am wondering if there will be a better way to fix this issue.

Fixes #19 (issue)

Type of change

Please delete options that are not relevant.

• [v ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ v] This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Checklist:

• [ v] My code follows the style guidelines of this project
• [v ] I have performed a self-review of my own code
• [ v] I have commented my code, particularly in hard-to-understand areas
• [v ] I have made corresponding changes to the documentation
• [v ] My changes generate no new warnings

[dc7290]

@mizok

Thank you very much.

This usage was completely unexpected and I was not able to support it. The reason why we didn't notice it is because there is no description to test the use with html-webpack-plugin or html-loader at this stage. We will review the test format and change it to be more in line with actual use cases in the future.

However, as we have limited time to work on this issue, for now it will suffice to add the README description and error messages as you have done.

Thank you for everything.