Support Vue.js

[rbri]

Seems like this framework gets more and more popular.
This issue is about making sites using Vue.js working with HtmlUnit.

[rbri]

There is a first (failing) test case here: com.gargoylesoftware.htmlunit.libraries.VueTest

[rbri]

Finding 1:
The first problem seems to be related to a problem with Rhino's strict support. At least my minimal sample is working if i remove the 'use strict' from the vue.js code.

If you like you can try something like this as a workaround

    try (WebClient webClient = new WebClient(BrowserVersion.FIREFOX)) {

        new WebConnectionWrapper(webClient) {

            public WebResponse getResponse(final WebRequest request) throws IOException {
                WebResponse response = super.getResponse(request);
                if (MimeType.APPLICATION_JAVASCRIPT.equals(response.getContentType())) {
                    String content = response.getContentAsString();
                    content = content.replace("'use strict';", "");
                    content = content.replace("\"use strict\";", "");

                    final WebResponseData data = new WebResponseData(content.getBytes(),
                            response.getStatusCode(), response.getStatusMessage(), response.getResponseHeaders());
                    response = new WebResponse(data, request, response.getLoadTime());
                }
                return response;
            }
        };

        HtmlPage page = webClient.getPage(url);
        System.out.println(page.asXml());
    }

The reason is the same as #60. The Rhino issue is mozilla/rhino#403.
Will try to fix this in Rhino.

[rbri]

Made a first update of core-js. At least my super simple first test passes.
Please use the latest snapshot build and report your results.

[rbri]

Yesterday i have added another test case - this time a simple button with an action. Works also fine with the lastest core-js.

[danielkp1234]

@rbri Have you gotten time to figure out what is causing the vue.js error in the issue above
SeleniumHQ/htmlunit-driver#87

[rbri]

Sorry not really. Have done many things (see twitter for some of them). The most important are the fixes for NodeList - this hopefully brings some real progress for our js support. Will focus on finishing the FF79 and EDGE stuff during this week and can hopefully make a new version next weekend. Then i can come back to this.

[danielkp1234]

@rbri That sounds great :)

[trajano]

This bug in mozilla/rhino#913 will prevent this construct which is used in Vue from working

  const PatchFlagNames = {
      [1 /* TEXT */]: `TEXT`,
      [2 /* CLASS */]: `CLASS`,
      [4 /* STYLE */]: `STYLE`,
      [8 /* PROPS */]: `PROPS`,
      [16 /* FULL_PROPS */]: `FULL_PROPS`,
      [32 /* HYDRATE_EVENTS */]: `HYDRATE_EVENTS`,
      [64 /* STABLE_FRAGMENT */]: `STABLE_FRAGMENT`,
      [128 /* KEYED_FRAGMENT */]: `KEYED_FRAGMENT`,
      [256 /* UNKEYED_FRAGMENT */]: `UNKEYED_FRAGMENT`,
      [512 /* NEED_PATCH */]: `NEED_PATCH`,
      [1024 /* DYNAMIC_SLOTS */]: `DYNAMIC_SLOTS`,
      [2048 /* DEV_ROOT_FRAGMENT */]: `DEV_ROOT_FRAGMENT`,
      [-1 /* HOISTED */]: `HOISTED`,
      [-2 /* BAIL */]: `BAIL`
  };

This can be quickly verified by https://www.jdoodle.com/execute-rhino-online/

[rbri]

see #755