[Word Online] Word Online can not insert or search '\v'

[shinji-morimitsu]

Provide required information needed to triage your issue

Your Environment

• Platform: Office on the web
• Host: Word
• Office version number: ______
• Operating System: ______
• Browser (if using Office on the web): Edge 133.0.3065.69

Expected behavior

Word AddIn script can not insert and search '\v' (\u000b) == Vertical Tab == Shift-Enter on Word Online.

Actually, expectation is the behavior of Native Word and Word Online should be same rather than '\v' handling.
This is because Microsoft REQUIRES in its AppSource approval process that addin provide the same functionality in Word Online.

Current behavior

Word AddIn script insert '\v' as string on Word Onlnie.
Word AddIn script fails to search string that contins '\v'.

Steps to reproduce

1. Run 'live example' on Script Lab on Word Online.

2. Insert "abc[Shift-Enter]def" on Word Online.

3. document.body.search('c\vd')

Link to live example(s)

$("#run").on("click", () => tryCatch(run));

async function run() {
  OfficeExtension.config.extendedErrorLogging = false;

// Note: Word Online fails to insert '\v'.
// So, if you try the case of search failure on Word Online.
// Please comment out these 2 blocks, and insert 'abc[Shift-Enter]def' manually on document, then run this script.
  await Word.run(async context => {
    context.document.changeTrackingMode = Word.ChangeTrackingMode.off;
    context.document.body.clear();
    await context.sync();
    console.log('clear document');
  });
  await Word.run(async context => {
    const paragraph = context.document.body.insertParagraph("abc\u000bdef", Word.InsertLocation.start);
    await context.sync();
    console.log('setup texts');
  });
  
  await Word.run(async context => {
    context.document.body.load('text');
    const searchResult = context.document.search("c\u000bd");
    const resultRange = searchResult.getFirstOrNullObject();
    resultRange.load('items,text');
    await context.sync();

    if (resultRange.isNullObject) {
      console.log(`not found: ${context.document.body.text}`);
    } else {
      console.log(`found!: ${resultRange.text}`);
    }
  });
}

// Default helper for invoking an action and handling errors.
async function tryCatch(callback) {
  try {
    await callback();
  } catch (error) {
    // Note: In a production add-in, you'd want to notify the user through your add-in's UI.
    console.error(error);
  }
}

Provide additional details

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Context

We are providing the feature that is sort of proofreading.
So, it is important to search behavior is same on Native and Online to update document on Word Document

Useful logs

• Console errors
• Screenshots
• Test file (if only happens on a particular file)

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