Attach (recommended) or Link to PDF file here:
https://drive.google.com/open?id=1UjLxnFw2g3gn3tvNLRYLdmG6mFdFKCcr

Configuration:
- Web browser and its version: Chrome 77.0.3865.90
- Operating system and its version: Mac mojave 10.14.6
- PDF.js version: 2.3.194
- Is a browser extension: Nope

Steps to reproduce the problem:
1. Make sure to set `renderInteractiveForms` to `true`
2. The read-only form field(Sample title) doesn't honor it's proper font-size

What is the expected behavior?
<img width="862" alt="write" src="https://user-images.githubusercontent.com/4616548/66152094-4a009a80-e64b-11e9-81dc-178068055efa.png">

What went wrong?
<img width="842" alt="wrong" src="https://user-images.githubusercontent.com/4616548/66152100-4d942180-e64b-11e9-91a8-ad9caf451f98.png">


}
    }
    
    for (const option of this.data.options) {
      const optionElement = document.createElement("option");
      optionElement.textContent = option.displayValue;
      optionElement.value = option.exportValue;
      if (this.data.fieldValue.includes(option.exportValue)) {
        optionElement.setAttribute("selected", true);
      }
      selectElement.appendChild(optionElement);
    }
    function getValue(event) {
      const options = event.target.options;
      return options[options.selectedIndex].value;
    }
    if (this.enableScripting && this.hasJSActions) {
      selectElement.addEventListener("updatefromsandbox", event => {
        const { detail } = event;
        const actions = {
          value() {
            const options = event.target.options;
            const value = detail.value;
            const i = options.indexOf(value);
            if (i !== -1) {
              options.selectedIndex = i;
              storage.setValue(id, { value });
            }
          },
          focus() {